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‘No way, not possible’: California has a plan for new water rules. Will it save salmon from extinction?

News Feed
Monday, December 16, 2024

In summary Growers and cities support the Newsom administration proposal, saying it strikes a balance for uses of Delta water. But environmentalists say the “healthy rivers” rules would actually harm California’s iconic salmon. The Newsom administration is refining a contentious set of proposed rules, years in the making, that would reshape how farms and cities draw water from the Central Valley’s Delta and its rivers. Backed by more than $1 billion in state funds, the rules, if adopted, would require water users to help restore rivers and rebuild depleted Chinook salmon runs.   The administration touts its proposed rules as the starting point of a long-term effort to double Central Valley Chinook populations from historical levels, reaching numbers not seen in at least 75 years. But environmental groups have almost unanimously rejected it, saying it promises environmental gains that will never materialize and jeopardizes the existence of California’s iconic salmon and other fish. “There is no way the assets they’ve put on the table, water and habitat combined, are going to achieve the doubling goal — no way, not possible,” said Jon Rosenfield, science director with San Francisco Baykeeper.  Dubbed Healthy Rivers and Landscapes but better known as “the voluntary agreements,” the proposal is one of two pathways for state officials as they update a keystone regulatory document called the Bay-Delta Water Quality Control Plan, which was last overhauled in 1995. With the ecosystem of the Bay-Delta in the throes of collapse, the set of rules is critical to determining how much water flows through the Delta for salmon and other species and how much is available for growers and cities in the Central Valley and Southern California. Once vital to indigenous cultures and the coastal ecosystem, Chinook salmon and other native fish have declined for decades due to dam operations, water diversions, increased water temperatures and marine food web issues. Numbers of spawning adult Chinook have dropped so low that all commercial and recreational salmon fishing has been banned for two years in a row, and preliminary numbers this year show no signs of recovery.  State officials from multiple agencies have lauded the Healthy Rivers program — which would meter out flows for fish while mandating restoration of floodplains and other river features — as their preferred option for updating the plan. California’s most influential water districts, serving tens of millions of people and most of the Central Valley’s farmland, have rallied behind the state’s preferred option, which has taken center stage during public workshops since November. Newsom administration officials have worked on these rules for years during negotiations with the San Joaquin Valley’s Westlands Water District, the nation’s largest agricultural water provider, the giant Metropolitan Water District of Southern California and other water users. California Resources Secretary Wade Crowfoot described the proposal as “a new and strengthened approach” that will protect both the environment and the water supply.  Crowfoot told the water board that the proposed rules would do “a good job working to balance all of (Californians’) needs, and ultimately help the environment to recover in ways that’s workable for communities across our state.”  Such a balance has long eluded state officials. “This is progress,” Chuck Bonham, director of the California Department of Fish and Wildlife, said at a November water board workshop. “It’s gone on so long. It’s time.”  Back in 2020, Gov. Gavin Newsom endorsed the “voluntary agreement” approach. “Today, I am committing to achieving a doubling of California’s salmon population by 2050. These agreements will be foundational to meeting that goal,” he wrote in a CalMatters opinion piece. The rules would do “a good job working to balance all of (Californians’) needs, and ultimately help the environment to recover in ways that’s workable for communities across our state.” California resources Secretary Wade Crowfoot Nina Hawk, the Bay-Delta Initiatives group manager with the Metropolitan Water District — which provides water that serves 19 million Southern Californians — said the Newsom proposal would create an equitable pathway to meeting human and environmental water demands. “It is important that we try to balance what the state board defines as beneficial uses … both for the environment and for farms, in a way that looks at the integrity of the water system and also for the state of California’s natural resources and its economy,” Hawk said.   Kevin Padway of the Zone 7 Water Agency, which serves 270,000 East Bay residents, encouraged the water board to adopt the rules, commending them as an “immediately implementable” route to balancing water demands for people and environmental uses. A drone provides a view of water pumped from the Harvey O. Banks Delta Pumping Plant into the California Aqueduct, which delivers Northern California river water to Southern California, on Jan. 20, 2023. Photo by Ken James, California Department of Water Resources But environmentalists aren’t sold. Some have even refused to call it by its formal name, saying it’s a euphemism with no bearing on “healthy rivers.” They say the rules would favor water users, allowing cities and farms to draw so much water from the Delta and its tributary rivers that salmon will continue their long decline. They say the proposed rules simply don’t offer fish the water they need, let alone support the state’s salmon rebuilding mandate.  “If you’re diverting more than half of a river’s flow, you are guaranteeing negative population growth” of salmon, said Gary Bobker, Friends of the River’s program director. The complex flow rules could even allow growers to entirely drain some rivers in critically dry years, according to Barry Nelson, a water policy analyst with the Golden State Salmon Association who spoke at a recent board workshop. “Dewatering rivers during droughts would be completely consistent with the Bay-Delta Plan,” he said.  The State Water Resources Control Board is the agency with the authority to approve the rules. A public hearing and vote could come in 2025. The water board’s other option would require strict minimum flows in rivers. Water users say those rules would have unacceptable impacts on farms, hydropower and communities — including planned housing projects — while environmentalists and tribes laud it as more protective of fish. It would ensure that rivers contain an average of 55% of the total water available in the watershed at a given time — a measure called unimpaired flow. While momentum has built behind the state’s Healthy Rivers plan, the state water board could still go either way with their vote. It is even possible that officials adopt both options, with the unimpaired flow pathway reserved as a regulatory backstop, should the Newsom proposal fail, or as concurrent rules applied to waters users who opt out of the voluntary agreements.   Doubling Chinook runs — is it a stream dream A longstanding mandate requires fishery and water managers to double the Central Valley’s population of naturally reproducing Chinook salmon from levels observed between 1967 and 1991. This would translate into an average of 990,000 spawning Chinook each year, almost 10 times recent averages. State officials say their Healthy Rivers plan would help to realize this goal. Around year-eight — when the program could be extended — officials hope to be about 25% of the way to the doubling goal, said Louise Conrad, lead scientist with the state Department of Water Resources.   “Salmon runs could potentially be extinct by then with the flow assets they’re putting forward.”Ashley Overhouse, defenders of wildlife Officials with the National Marine Fisheries Service, in a January letter to the state, said the eight-year timeframe “is concerning, given the dire status of native fish species within the Sacramento River Basin and Delta.” The U.S. Environmental Protection Agency, in comments emailed to the Water Board in January, noted the light water allowances in critically dry years. “EPA is concerned that the total volume and timing of Delta inflow and outflow provided under the proposed VA (voluntary agreement) alternative relative to baseline is not large enough to adequately restore and protect aquatic ecosystems,” the agency wrote.  Fall-run Chinook salmon migrate and spawn in the Feather River near the Feather River Fish Hatchery in Oroville on Nov. 15, 2024. The iconic fish are depleted from a combination of water diversions in the Delta, increased water temperatures and other factors. Photo by Xavier Mascareñas, California Department of Water Resources This target of doubling Chinook is nothing new. The almost legendary “doubling goal” has been on the books since the early 1990s, when federal law set the deadline for 2002.  Now the state’s proposed rules would punt it to 2050 — what salmon advocates say is much too far away for a species already on the brink and a vanishing fishing industry. “Salmon runs could potentially be extinct by then with the flow assets they’re putting forward,” said Ashley Overhouse, Defenders of Wildlife’s water policy advisor. Representatives of California tribes, who historically relied on Chinook as a dietary mainstay, say they were excluded from planning discussions.  “The only people that have been at the table talking about the voluntary agreements are water agencies, water contractors, irrigation districts, and private companies,” said Gary Mulcahy, government liaison for the Winnemem Wintu Tribe. “They (state officials) have excluded tribes, disadvantaged communities, environmental justice communities for nine years.” State officials “have excluded tribes, disadvantaged communities, environmental justice communities for nine years.”Gary Mulcahy, Winnemem Wintu Tribe But the flow rules environmentalists and tribes prefer would cut deep into urban and agricultural water supplies, causing “impacts far and wide” on water exports from the Delta, storage in upstream reservoirs and hydropower production, said Jennifer Pierre, general manager of the State Water Contractors, which represents 27 water agencies that serve 750,000 acres of farmland and 27 million people. Farmers, she said, would experience substantial permanent economic losses, forcing widespread fallowing of their crops. San Joaquin Valley growers would lose more than a quarter of their water in dry years, and 13% on average for all years, according to the draft rules. Thaddeus Bettner, executive director of the Sacramento River Settlement Contractors — a group of farmers who largely grow rice  — said it would force as much as 30% of his district’s 450,000 irrigated acres out of production, with harder impacts on growers with little groundwater to fall back on.  Rice farmer Jon Munger, with 13,000 acres on the east side of the Sacramento Valley, said, in some years, the unimpaired flow approach favored by environmentalists could strip him of virtually all of his water in summer months. His groundwater supply is very limited. “We wouldn’t have any water to grow rice,” he said.  That option would also squeeze residential water use. The Placer County Water Agency, which serves about a quarter-million residents northeast of Sacramento, would lose almost half its supply, threatening initiatives to accommodate a growing population, said General Manager Andrew Fecko.  It would cost Southern California a big chunk of its municipal water, too.  Under the environmentalists’ option, “we wouldn’t have sufficient water supply. It would be a decline at the taps, it would be a decline for businesses.”Nina Hawk, Metropolitan Water District of Southern California “We wouldn’t have sufficient water supply,” said Hawk at the Metropolitan Water District. “It would be a decline at the taps, it would be a decline for businesses.” Billions of dollars in new salmon habitat The program proposes restoring 45,000 acres of structural habitat, like floodplains, tidal marshes, in-river piles of woody debris and gravel spawning beds over the next eight years.  Thousands of acres are already completed or underway. This, according to Overhouse at Defenders of Wildlife, leaves roughly 30,000 planned acres that would be brand new additions to the ecosystem — which she and others say would mute the promised benefits of the program.  All of this will cost money, and to date $2.4 billion in public funds have been secured to support the flow measures and the habitat restoration. Another $500 million may be needed. The state’s proposed rules would allocate to the Sacramento River system between 100,000 and 700,000 acre-feet of water per year, depending on how much precipitation has fallen. But environmentalists say this isn’t nearly enough. They also worry that regulatory loopholes would allow future water projects — such as the Sites Reservoir, for which Newsom advocated at a public appearance last week — to divert water that would be protected if the state adopted unimpaired flow rules. “It is not an accident that they haven’t solved this problem,” Nelson, with the Salmon Association, said. “The VAs (voluntary agreements) and the Delta tunnel and Sites are a package.”  Some conservationists are optimistic about the state’s proposal. Rene Henery, California science director with Trout Unlimited, thinks more habitat and water — especially in dry years — will be needed to protect salmon. But he also thinks the rules could succeed, as long as it’s just the first step of many in a flexible and collaborative restoration process — something he and a team of colleagues are trying to initiate with a state-funded project called Reorienting to Recovery.   UC Davis fish biologist Carson Jeffres, who has studied floodplain restoration projects, also said the salmon doubling objective is achievable through the Newsom proposal as long as state officials “have the courage to be nimble and adjust and adapt if it looks like things aren’t going as planned.” Tribal water rights advocate Regina Chichizola, executive director of Save California Salmon, rejected the Newsom administration’s notion that the state balances competing needs and demands.  “We’ve compromised so much that we’re facing an extinction crisis, that tribes don’t have fish for ceremonies,” she told the board in an emotional public comment last week. “Of course I want to make sure that all of the cities have access to water, but in the end agriculture is going to have to use less water,” she said. “The job of the water board is not to make everyone happy, it’s to protect beneficial uses and clean water, and if the salmon go extinct on your watch, that’s something that you’re going to have to tell your grandkids about.” A third straight year with no California salmon fishing?  Early fish counts suggest it could happen October 30, 2024October 30, 2024 Is a new plan for delivering Delta water worse than Trump’s rules? Environmentalists say yes. October 25, 2024October 24, 2024

Growers and cities support the Newsom administration proposal, saying it strikes a balance for uses of Delta water. But environmentalists say the “healthy rivers” rules would actually harm California’s iconic salmon.

Various Chinook salmon swim in water, with rocks underneath them, as bubble from waves form overhead. The image has a sense of action and frenzy.

In summary

Growers and cities support the Newsom administration proposal, saying it strikes a balance for uses of Delta water. But environmentalists say the “healthy rivers” rules would actually harm California’s iconic salmon.

The Newsom administration is refining a contentious set of proposed rules, years in the making, that would reshape how farms and cities draw water from the Central Valley’s Delta and its rivers. Backed by more than $1 billion in state funds, the rules, if adopted, would require water users to help restore rivers and rebuild depleted Chinook salmon runs.  

The administration touts its proposed rules as the starting point of a long-term effort to double Central Valley Chinook populations from historical levels, reaching numbers not seen in at least 75 years. But environmental groups have almost unanimously rejected it, saying it promises environmental gains that will never materialize and jeopardizes the existence of California’s iconic salmon and other fish.

“There is no way the assets they’ve put on the table, water and habitat combined, are going to achieve the doubling goal — no way, not possible,” said Jon Rosenfield, science director with San Francisco Baykeeper. 

Dubbed Healthy Rivers and Landscapes but better known as “the voluntary agreements,” the proposal is one of two pathways for state officials as they update a keystone regulatory document called the Bay-Delta Water Quality Control Plan, which was last overhauled in 1995.

With the ecosystem of the Bay-Delta in the throes of collapse, the set of rules is critical to determining how much water flows through the Delta for salmon and other species and how much is available for growers and cities in the Central Valley and Southern California.

Once vital to indigenous cultures and the coastal ecosystem, Chinook salmon and other native fish have declined for decades due to dam operations, water diversions, increased water temperatures and marine food web issues. Numbers of spawning adult Chinook have dropped so low that all commercial and recreational salmon fishing has been banned for two years in a row, and preliminary numbers this year show no signs of recovery. 

State officials from multiple agencies have lauded the Healthy Rivers program — which would meter out flows for fish while mandating restoration of floodplains and other river features — as their preferred option for updating the plan.

California’s most influential water districts, serving tens of millions of people and most of the Central Valley’s farmland, have rallied behind the state’s preferred option, which has taken center stage during public workshops since November.

Newsom administration officials have worked on these rules for years during negotiations with the San Joaquin Valley’s Westlands Water District, the nation’s largest agricultural water provider, the giant Metropolitan Water District of Southern California and other water users.

California Resources Secretary Wade Crowfoot described the proposal as “a new and strengthened approach” that will protect both the environment and the water supply. 

Crowfoot told the water board that the proposed rules would do “a good job working to balance all of (Californians’) needs, and ultimately help the environment to recover in ways that’s workable for communities across our state.” 

Such a balance has long eluded state officials.

“This is progress,” Chuck Bonham, director of the California Department of Fish and Wildlife, said at a November water board workshop. “It’s gone on so long. It’s time.” 

Back in 2020, Gov. Gavin Newsom endorsed the “voluntary agreement” approach. “Today, I am committing to achieving a doubling of California’s salmon population by 2050. These agreements will be foundational to meeting that goal,” he wrote in a CalMatters opinion piece.

The rules would do “a good job working to balance all of (Californians’) needs, and ultimately help the environment to recover in ways that’s workable for communities across our state.” 

California resources Secretary Wade Crowfoot

Nina Hawk, the Bay-Delta Initiatives group manager with the Metropolitan Water District — which provides water that serves 19 million Southern Californians — said the Newsom proposal would create an equitable pathway to meeting human and environmental water demands.

“It is important that we try to balance what the state board defines as beneficial uses … both for the environment and for farms, in a way that looks at the integrity of the water system and also for the state of California’s natural resources and its economy,” Hawk said.  

Kevin Padway of the Zone 7 Water Agency, which serves 270,000 East Bay residents, encouraged the water board to adopt the rules, commending them as an “immediately implementable” route to balancing water demands for people and environmental uses.

A drone provides a view of water pumped from the Harvey O. Banks Delta Pumping Plant into the California Aqueduct at 9,790 cubic feet per second after January storms. The facility located in Alameda County and lifts water into the California Aqueduct. Jan. 20, 2023. Photo by Ken James, California Department of Water Resources
A drone provides a view of water pumped from the Harvey O. Banks Delta Pumping Plant into the California Aqueduct, which delivers Northern California river water to Southern California, on Jan. 20, 2023. Photo by Ken James, California Department of Water Resources

But environmentalists aren’t sold. Some have even refused to call it by its formal name, saying it’s a euphemism with no bearing on “healthy rivers.” They say the rules would favor water users, allowing cities and farms to draw so much water from the Delta and its tributary rivers that salmon will continue their long decline. They say the proposed rules simply don’t offer fish the water they need, let alone support the state’s salmon rebuilding mandate. 

“If you’re diverting more than half of a river’s flow, you are guaranteeing negative population growth” of salmon, said Gary Bobker, Friends of the River’s program director.

The complex flow rules could even allow growers to entirely drain some rivers in critically dry years, according to Barry Nelson, a water policy analyst with the Golden State Salmon Association who spoke at a recent board workshop.

“Dewatering rivers during droughts would be completely consistent with the Bay-Delta Plan,” he said. 

The State Water Resources Control Board is the agency with the authority to approve the rules. A public hearing and vote could come in 2025.

The water board’s other option would require strict minimum flows in rivers. Water users say those rules would have unacceptable impacts on farms, hydropower and communities — including planned housing projects — while environmentalists and tribes laud it as more protective of fish. It would ensure that rivers contain an average of 55% of the total water available in the watershed at a given time — a measure called unimpaired flow.

While momentum has built behind the state’s Healthy Rivers plan, the state water board could still go either way with their vote. It is even possible that officials adopt both options, with the unimpaired flow pathway reserved as a regulatory backstop, should the Newsom proposal fail, or as concurrent rules applied to waters users who opt out of the voluntary agreements.  

Doubling Chinook runs — is it a stream dream

A longstanding mandate requires fishery and water managers to double the Central Valley’s population of naturally reproducing Chinook salmon from levels observed between 1967 and 1991. This would translate into an average of 990,000 spawning Chinook each year, almost 10 times recent averages.

State officials say their Healthy Rivers plan would help to realize this goal. Around year-eight — when the program could be extended — officials hope to be about 25% of the way to the doubling goal, said Louise Conrad, lead scientist with the state Department of Water Resources.  

“Salmon runs could potentially be extinct by then with the flow assets they’re putting forward.”

Ashley Overhouse, defenders of wildlife

Officials with the National Marine Fisheries Service, in a January letter to the state, said the eight-year timeframe “is concerning, given the dire status of native fish species within the Sacramento River Basin and Delta.”

The U.S. Environmental Protection Agency, in comments emailed to the Water Board in January, noted the light water allowances in critically dry years.

“EPA is concerned that the total volume and timing of Delta inflow and outflow provided under the proposed VA (voluntary agreement) alternative relative to baseline is not large enough to adequately restore and protect aquatic ecosystems,” the agency wrote. 

A shallow stream flowing through with a fish visible above the river bottom over rocks and gravel. The fish is swimming just under the river's surface with another fish in the distant background.
Fall-run Chinook salmon migrate and spawn in the Feather River near the Feather River Fish Hatchery in Oroville on Nov. 15, 2024. The iconic fish are depleted from a combination of water diversions in the Delta, increased water temperatures and other factors. Photo by Xavier Mascareñas, California Department of Water Resources

This target of doubling Chinook is nothing new. The almost legendary “doubling goal” has been on the books since the early 1990s, when federal law set the deadline for 2002. 

Now the state’s proposed rules would punt it to 2050 — what salmon advocates say is much too far away for a species already on the brink and a vanishing fishing industry.

“Salmon runs could potentially be extinct by then with the flow assets they’re putting forward,” said Ashley Overhouse, Defenders of Wildlife’s water policy advisor.

Representatives of California tribes, who historically relied on Chinook as a dietary mainstay, say they were excluded from planning discussions. 

“The only people that have been at the table talking about the voluntary agreements are water agencies, water contractors, irrigation districts, and private companies,” said Gary Mulcahy, government liaison for the Winnemem Wintu Tribe. “They (state officials) have excluded tribes, disadvantaged communities, environmental justice communities for nine years.”

State officials “have excluded tribes, disadvantaged communities, environmental justice communities for nine years.”

Gary Mulcahy, Winnemem Wintu Tribe

But the flow rules environmentalists and tribes prefer would cut deep into urban and agricultural water supplies, causing “impacts far and wide” on water exports from the Delta, storage in upstream reservoirs and hydropower production, said Jennifer Pierre, general manager of the State Water Contractors, which represents 27 water agencies that serve 750,000 acres of farmland and 27 million people.

Farmers, she said, would experience substantial permanent economic losses, forcing widespread fallowing of their crops. San Joaquin Valley growers would lose more than a quarter of their water in dry years, and 13% on average for all years, according to the draft rules.

Thaddeus Bettner, executive director of the Sacramento River Settlement Contractors — a group of farmers who largely grow rice  — said it would force as much as 30% of his district’s 450,000 irrigated acres out of production, with harder impacts on growers with little groundwater to fall back on. 

Rice farmer Jon Munger, with 13,000 acres on the east side of the Sacramento Valley, said, in some years, the unimpaired flow approach favored by environmentalists could strip him of virtually all of his water in summer months. His groundwater supply is very limited.

“We wouldn’t have any water to grow rice,” he said. 

That option would also squeeze residential water use. The Placer County Water Agency, which serves about a quarter-million residents northeast of Sacramento, would lose almost half its supply, threatening initiatives to accommodate a growing population, said General Manager Andrew Fecko. 

It would cost Southern California a big chunk of its municipal water, too. 

Under the environmentalists’ option, “we wouldn’t have sufficient water supply. It would be a decline at the taps, it would be a decline for businesses.”

Nina Hawk, Metropolitan Water District of Southern California

“We wouldn’t have sufficient water supply,” said Hawk at the Metropolitan Water District. “It would be a decline at the taps, it would be a decline for businesses.”

Billions of dollars in new salmon habitat

The program proposes restoring 45,000 acres of structural habitat, like floodplains, tidal marshes, in-river piles of woody debris and gravel spawning beds over the next eight years. 

Thousands of acres are already completed or underway. This, according to Overhouse at Defenders of Wildlife, leaves roughly 30,000 planned acres that would be brand new additions to the ecosystem — which she and others say would mute the promised benefits of the program. 

All of this will cost money, and to date $2.4 billion in public funds have been secured to support the flow measures and the habitat restoration. Another $500 million may be needed.

The state’s proposed rules would allocate to the Sacramento River system between 100,000 and 700,000 acre-feet of water per year, depending on how much precipitation has fallen. But environmentalists say this isn’t nearly enough. They also worry that regulatory loopholes would allow future water projects — such as the Sites Reservoir, for which Newsom advocated at a public appearance last week to divert water that would be protected if the state adopted unimpaired flow rules.

“It is not an accident that they haven’t solved this problem,” Nelson, with the Salmon Association, said. “The VAs (voluntary agreements) and the Delta tunnel and Sites are a package.” 

Some conservationists are optimistic about the state’s proposal.

Rene Henery, California science director with Trout Unlimited, thinks more habitat and water — especially in dry years — will be needed to protect salmon. But he also thinks the rules could succeed, as long as it’s just the first step of many in a flexible and collaborative restoration process — something he and a team of colleagues are trying to initiate with a state-funded project called Reorienting to Recovery.  

UC Davis fish biologist Carson Jeffres, who has studied floodplain restoration projects, also said the salmon doubling objective is achievable through the Newsom proposal as long as state officials “have the courage to be nimble and adjust and adapt if it looks like things aren’t going as planned.”

Tribal water rights advocate Regina Chichizola, executive director of Save California Salmon, rejected the Newsom administration’s notion that the state balances competing needs and demands. 

“We’ve compromised so much that we’re facing an extinction crisis, that tribes don’t have fish for ceremonies,” she told the board in an emotional public comment last week.

“Of course I want to make sure that all of the cities have access to water, but in the end agriculture is going to have to use less water,” she said. “The job of the water board is not to make everyone happy, it’s to protect beneficial uses and clean water, and if the salmon go extinct on your watch, that’s something that you’re going to have to tell your grandkids about.”

Read the full story here.
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Costa Rica’s La Fortuna Waterfall Ranks in Top 1% Globally on TripAdvisor

La Fortuna Waterfall in Costa Rica received TripAdvisor’s “Best of the Best” award for the second straight year in the Travellers’ Choice 2025 rankings. This honor places the site among the top 1% of attractions globally, based on millions of traveler reviews and ratings. The waterfall, a key draw in the Arenal Volcano National Park […] The post Costa Rica’s La Fortuna Waterfall Ranks in Top 1% Globally on TripAdvisor appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

La Fortuna Waterfall in Costa Rica received TripAdvisor’s “Best of the Best” award for the second straight year in the Travellers’ Choice 2025 rankings. This honor places the site among the top 1% of attractions globally, based on millions of traveler reviews and ratings. The waterfall, a key draw in the Arenal Volcano National Park area, attracted roughly 1,000 visitors daily in 2024. The waterfall is about 4 kilometers from the center of La Fortuna in San Carlos, the 70-meter cascade requires a descent of about 530 steps to reach its base. The path includes safety rails, rest spots, and water stations amid native forest trees. At the site, travelers find a restaurant, gift shops, restrooms, and other services. Admission costs $10 for Costa Rican nationals and $20 for international visitors, with reduced rates for those with disabilities. A non-profit group, the Integral Development Association of La Fortuna (ADIFORT), oversees the site. Founded in 1969, ADIFORT directs revenue toward road improvements, environmental care, education, sports, cultural programs, town upkeep, and safety measures. This model ties tourism directly to local progress. The area forms part of a 210-acre biological reserve in premontane tropical wet forest, at 520 meters above sea level. It marks the headwaters of the La Fortuna River. Along the trail, visitors pass an orchid path, butterfly garden, frog habitat, and bee hotel, adding to the natural appeal. Travelers like to visit the waterfall for its clear waters and the chance to swim at the base, though heavy rains can limit access during the rainy season. Reviews highlight the well-maintained facilities and the rewarding hike, despite the steep return climb. The award reflects consistent high marks for the experience, solidifying our country’s reputation in ecotourism. Officials note that sustainable management keeps the site pristine while benefiting residents. As visitor numbers grow, the focus remains on balancing tourism with conservation. This latest win shows the waterfall’s role in showcasing not only Costa Rica’s biodiversity but also our community-driven initiatives. The post Costa Rica’s La Fortuna Waterfall Ranks in Top 1% Globally on TripAdvisor appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

People living along polluted Thames file legal complaint to force water firm to act

Residents claim raw sewage and poorly treated effluent as result of Thames Water’s failings are threat to healthCommunities across south-east England are filing the first coordinated legal complaints that sewage pollution by Thames Water negatively affects their lives.Thames Water failed to complete upgrades to 98 treatment plants and pumping stations which have the worst records for sewage pollution into the environment, despite a promise to invest in them over the last five years. Continue reading...

Communities across south-east England are filing the first coordinated legal complaints that sewage pollution by Thames Water negatively affects their lives.Thames Water failed to complete upgrades to 98 treatment plants and pumping stations which have the worst records for sewage pollution into the environment, despite a promise to invest in them over the last five years.People in 13 areas including Hackney, Oxford, Richmond upon Thames and Wokingham are sending statutory nuisance complaints to their local authorities demanding accountability from Thames Water and urgent action.At several sites it is not just raw sewage from storm overflows that causes pollution but also the quality of treated effluent coming from Thames Water facilities, which presents a direct threat to public health, the campaigners say.At Thames’s Newbury sewage treatment plant, raw effluent discharges into the River Kennet, a protected chalk stream. Data shows raw sewage discharges from the plant increased by 240% between 2019 and 2024 from 482 hours to 1,630 hours. Thames says the plant is among its 26 most polluting sites.Thames wants the water regulator, Ofwat, to allow it to charge customers £1.18bn over the next five years for the upgrades it has failed to carry out. But the regulator has refused to let it pass the full cost on to customers, allowing only £793m, as it deems bill payers have already funded the upgrades. It says any escalation of costs should be borne by Thames Water.With the company failing to act, people living in the catchment are turning to statutory nuisance complaints under section 79 of the Environmental Protection Act 1990. In letters to their local authorities, they are asking for decisive action by Thames to stop its sewage pollution that is causing harm along the river.A statutory nuisance is an activity that unreasonably interferes with the use or enjoyment of land and is likely to cause prejudice or injury to health.Those living in the area say sewage pollution from Thames’s failing sites and infrastructure has made rivers unsafe and disrupted recreation, sport, local businesses and everyday enjoyment.They cite a 16-year-old rower from Henley rowing club who became unwell after training on the river; tests confirmed he had contracted E coli. His illness coincided with his GCSE exams, preventing him from revising and sitting some papers.In West Berkshire, people are highlighting the case of a kayaker who capsized and became unwell over the following days. And at Tagg’s Island in Hampton, south-west London, five children became ill after playing in the River Thames near Hurst Park.Laura Reineke, who lives in Henley-on-Thames and founded the campaign group Friends of the Thames, said: “People here are fed up with living beside a river that’s being treated like an open sewer. We’ve submitted a nuisance complaint to our local authority because what Thames Water is doing is unacceptable.”Citizen testing of the river has found treated effluent leaving the Henley plant has contained E coli at levels 30 times higher than bathing water safe levels, calculated using Thames Water’s data released under an environmental information request.“Local residents are angry and determined to hold this company accountable for the damage it’s causing to our river and our community,” Reineke said.Thames has already received a record £104m fine by Ofwat over environmental breaches involving sewage spills across its network, after failing to operate and manage its treatment works and wastewater networks effectively.Amy Fairman, the head of campaigns at River Action, which is supporting the coordinated complaints, said: “This action is about fixing sewage pollution in the Thames for good, not compensating people for past failings.“Each local authority must investigate these complaints and, where statutory nuisance is found to exist, issue an abatement notice and take enforcement action. Councils now have a legal duty to act.”She said there was extensive evidence of performance failures at Thames Water, which was on the brink of insolvency. Despite this ministers had not put the company into special administration, a process that would allow for urgent infrastructure upgrades, put public interest ownership and governance first, and protect communities and the environment.Thames Water was approached for comment.

Gold clam invasion in NZ threatens drinking water for millions of people

The invasion threatens more than water. Clams could foul dam intakes and reduce hydroelectric efficiency in a river that generates 13% of New Zealand’s power.

Michele Melchior, CC BY-NDAs a geochemist studying New Zealand’s freshwater systems, I’ve spent years tracking the subtle chemical shifts in our rivers and lakes. But nothing prepared me for the rapid transformation unfolding in the Waikato River since the invasion of the Asian clam (Corbicula fluminea, also known as the freshwater gold clam). First detected in May 2023 in Lake Karāpiro, a reservoir lake on the Waikato, this bivalve is now altering the river’s chemistry in ways that could jeopardise drinking water for up to two million people, disrupt hydroelectric power and undermine decades of ecosystem restoration efforts. Our team’s work reveals how these clams are depleting essential minerals like calcium from the water, impairing arsenic removal during treatment and signalling a rapid escalation with broader impacts ahead. Gold clams now dominate the river bed in many areas, with densities exceeding 1,000 individuals per square metre. Michele Melchior, CC BY-ND Native to eastern Asia, the gold clam can self-fertilise and spreads via contaminated gear, birds or floods. Climate change will likely accelerate its invasion. The problem is already spreading quickly beyond the Waikato River. A recent detection in a Taranaki lake has led to waterway closures. And warnings for the Whanganui River underscore the urgent need for national vigilance. A silent invasion with big consequences The Waikato River stretches 425 km from Lake Taupō to the Tasman Sea, powering nine hydroelectric dams and supplying drinking water to Auckland, Hamilton and beyond. It’s a taonga (cultural treasure) central to Māori identity and the subject of a landmark restoration strategy, Te Ture Whaimana o Te Awa o Waikato, that aims to revive the river’s mauri (life force). In late 2024, arsenic levels in treated Waikato water briefly exceeded safe limits of 0.01 milligrams per litre (mg/L), triggering alarms at treatment plants. Investigations ruled out typical culprits such as geothermal spikes. Instead, our analysis points to the clams. By filtering water and building calcium carbonate shells, the clams are drawing down dissolved calcium by 25% below historical norms. But calcium is crucial for water treatment processes because it helps bind and remove contaminants such as arsenic. Our modelling estimates the clams are forming up to 30 tonnes of calcium carbonate daily in Lake Karāpiro alone. This suggests lake-wide densities averaging around 300 individuals per square metre. 2025 surveys show hotspots with up to 1,134 clams per square metre. The result? Impaired arsenic removal. Without stable calcium, flocs (clumps of particles) don’t form properly, letting arsenic slip through. While the exceedances were short-lived and contained through quick adjustments, they exposed vulnerabilities in a system optimised for historically consistent river chemistry. Field teams survey the rapidly expanding population of freshwater gold clams in the Waikato River. Michele Melchior, CC BY-ND How the clams are changing the river The gold clam isn’t just a filter-feeder; it’s an ecosystem engineer. Each clam can process up to a litre of water per hour, sequestering calcium for shells while releasing ammonia and bicarbonate. Our data from 2024-2025, collected at multiple sites, show these shifts are most pronounced in deeper waters. Statistical tests confirm patterns absent in pre-invasion records. Longer residence times in the reservoir lake (up to seven days) exacerbate the issue. Faster flushing correlates with higher growth rates, as clams ramp up activity. But prolonged retention in warmer months can lead to hypoxia (low oxygen), with the potential to trigger mass die-offs that release toxins or mobilise sediment-bound arsenic. Lake Karāpiro water column temperature and dissolved oxygen levels (from November 2024 to October 2025) show oxygen depletion in deep water during warmer summer conditions, likely exacerbated by the gold clam. Author provided, CC BY-NC-ND These changes threaten more than water treatment. Clams could biofoul dam intakes and reduce hydroelectric efficiency in a river that generates 13% of New Zealand’s power (25% at peak). Native species like kākahi (freshwater mussels) face competition and shifts in nutrient cycling could fuel algal blooms, clashing with restoration goals. Climate risks and stressors in a warming world Amid these ongoing changes, climate projections indicate that hot, dry events – such as prolonged heatwaves or droughts – are likely to become more frequent. Such conditions could reduce river flows and elevate water temperatures, lowering dissolved oxygen levels and creating low-oxygen zones. If clam densities continue to rise exponentially, a mass die-off might occur. This would release pulses of ammonia and organic matter that further deplete dissolved oxygen. This, in turn, could promote arsenic mobilisation from sediments and harmful algal blooms in nutrient-enriched, stagnant waters. This could necessitate supply restrictions for affected communities. Ecologically, it might kill fish and disrupt native biodiversity. Economically, it could interrupt industries reliant on the river. From the Waikato to a nationwide threat The invasion isn’t contained. The clam, which can produce up to 70,000 juveniles annually, thrives in warm, nutrient-rich waters. It is notoriously hard to eradicate once established. In mid-November, the Taranaki Regional Council confirmed the gold clam in Lake Rotomanu. Just days later, warnings were issued to boaties on the Whanganui River, urging rigorous “check, clean, dry” protocols. Without intervention, the clams could reach other systems, including the Clutha or Waitaki, and compound pressures on New Zealand’s already stressed freshwaters. Our research highlights the need for integrated action. Monitoring should expand, incorporating environmental DNA for early detection and calcium isotope tracing to pinpoint clam impacts. Water providers could trial calcium dosing during peak growth periods. But solutions must honour Te Tiriti o Waitangi principles. Collaboration with iwi and blending mātauranga Māori (indigenous knowledge) with science, such as using tikanga indicators for water health, is essential. Biosecurity measures including gear decontamination campaigns are critical to slow spread. Field teams are counting invasive gold clams on the banks of the Waikato River. Michele Melchior, CC BY-ND This invasion intersects with New Zealand’s evolving water policy framework, particularly the Local Water Done Well regime which replaced the repealed Three Waters reforms in late 2023. Councils are now implementing delivery plans and focusing on financial sustainability and infrastructure upgrades. The Water Services Authority Taumata Arawai continues as the national regulator, enforcing standards amid an estimated NZ$185-260 billion infrastructure deficit. Recent government announcements propose further streamlining, including replacing regional councils with panels of mayors or territories boards, while encouraging amalgamations to simplify planning and infrastructure delivery. These changes aim to make local government more cost-effective and responsive to issues such as housing growth and infrastructure funding. But a hot or dry event could test the effectiveness of water policy, potentially straining inter-council coordination for shared resources such as the Waikato River and highlighting gaps in emergency response. Globally, the gold clam has cost billions in damages. New Zealand can’t afford to wait. By acting now, we can protect Te Awa o Waikato and safeguard water security for generations. Adam Hartland receives funding from the Ministry of Business, Innovation and Employment via grant LVLX2302.

Water shortages could derail UK’s net zero plans, study finds

Tensions grow after research in England finds there may not be enough water for planned carbon capture and hydrogen projectsRevealed: Europe’s water reserves drying up due to climate breakdownTensions are growing between the government, the water sector and its regulators over the management of England’s water supplies, as the Environment Agency warns of a potential widespread drought next year.Research commissioned by a water retailer has found water scarcity could hamper the UK’s ability to reach its net zero targets, and that industrial growth could push some areas of the country into water shortages. Continue reading...

Tensions are growing between the government, the water sector and its regulators over the management of England’s water supplies, as the Environment Agency warns of a potential widespread drought next year.Research commissioned by a water retailer has found water scarcity could hamper the UK’s ability to reach its net zero targets, and that industrial growth could push some areas of the country into water shortages.The government has a legally binding target to reach net zero greenhouse gas emissions by 2050, and has committed to a clean power system by 2030 with at least 95% of electricity generated from low-carbon sources, but the study concludes there will not be enough water available to support all planned carbon capture and hydrogen projects.Development of these kinds of projects, which use significant amounts of water, could push some UK regions into water shortages, according to the analysis undertaken by Durham University and funded by the water retailer Wave – a joint venture between Anglian Venture Holdings, the investment and management vehicle responsible for Anglian Water Group’s commercial businesses, and the Northumbrian Water Group.Led by Prof Simon Mathias, an expert in hydraulics, hydrology and environmental engineering, researchers assessed plans across England’s five largest industrial clusters in Humberside, north-west England, the Tees Valley, the Solent and the Black Country, to determine how much water would be needed to reach net zero and whether the UK’s future water supply could meet this demand.“Decarbonisation efforts associated with carbon capture and hydrogen production could add up to 860m litres per day of water demand by 2050. In some regions, for example Anglian Water and United Utilities, deficits could emerge as early as 2030,” said Mathias.Decarbonisation within the Humberside industrial cluster could push Anglian Water into water deficit by 2030, leading to a shortage of 130m litres a day by 2050, while plans around the north-west cluster could push United Utilities into a deficit of around 70m litres a day by 2030, according to the research.However, a United Utilities spokesperson said the deficit figures were “overstated as regional water management plans already make allowances for the predicted hydrogen demand”, and added that the “drive to net zero is an important issue facing the water sector, with significant work already under way to drive sustainable solutions”.Anglian Water did recognise the deficit figures but said they were at the upper end of a range it had considered. It blamed Ofwat for not allowing water companies to spend more, hindering its ability to secure future supplies.Business demand is often excluded from strategic planning, according to Anglian Water, which it said prevented water companies from making the investments needed, weakening the system’s resilience to the climate crisis and limiting its capacity to support economic growth.A spokesperson for Water UK confirmed water companies’ plans to ensure there were enough water supplies in the future did not take into account the needs of some large planned projects, and blamed the Environment Agency for the omission.“After being blocked from building reservoirs for more than 30 years, we have finally been given approval to build 10. The problem is that the Environment Agency’s forecasts, on which the size, number and locations of these reservoirs are based, do not account for the government’s economic or low-carbon ambitions. Hydrogen energy needs a lot of water, so correcting these forecasts is increasingly urgent.”Nigel Corfield from Wave said he had commissioned the work because “water companies don’t have the same statutory obligations for businesses as they do for households, and we sensed that there was going to be a bit of a problem”.“Government and Ofwat are allowing businesses and these big projects to sort themselves out in terms of how they’re going to get their water,” said Corfield. “We generally don’t think that’s right, because this is about energy security so we think that the best people to provide that and supply that and support that are the water companies.”The government said the UK was “rolling out hydrogen at scale”, with 10 projects said to be shovel-ready. It said it expected all schemes to have sustainable water-sourcing plans and, where required, abstraction licences. Carbon capture schemes would get the green light only if they could prove they met strict legal standards and limits and offered “a high level of protection” for people and the environment, it said.“We face a growing water shortage in the next decade and that is one of the reasons we are driving long-term systemic change to tackle the impacts of climate change,” said a government spokesperson.“This includes £104bn of private investment to help reduce leakage and build nine reservoirs, as well as a record £10.5bn in government funding for new flood defences to protect nearly 900,000 properties by 2036.”But Dieter Helm, a professor of economic policy at the University of Oxford, said England’s water system was stuck in the past and that there was no lack of water, rather that it was badly managed.“It’s worse than an analogue industry,” he said. “Until recently, some water companies didn’t even know where their sewage works were, let alone whether they were discharging into rivers. The information set is extremely weak. But a data revolution now means we can map water systems in extraordinary detail, digitally, at a far finer resolution.”Helm said every drop of water should be measured and reported in real time, and that the data should sit with a new, independent catchment regulator, not the water companies.“You should never be able to have an abstraction without an abstraction meter,” he said. “And it should be a smart meter, automatically reporting. You can’t run a system without data, and you can’t rely on the water companies to hold the data for everyone in the system – they’re just one player.”In his model, the catchment regulator would hold live data on “all the catchment uses of water”, such as abstraction, runoff, water and river levels, sewage discharges, and publish everything on a public website. Anyone, he said, should be able to look up a catchment, see what was going on, and even model the impact of a new project, such as a hydrogen plant, on the system.“That’s how you run an electricity system,” Helm said. “Why don’t we have that in water? And why don’t we have a body responsible for it? There’s an information revolution required here, quite separate from the question of whether we actually run short of water.”The government and the Environment Agency have already warned of an England-wide water deficit of 6bn litres a day by 2055, and have said England faces widespread drought next year unless there is significant rainfall over the winter.

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