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How to Protect Your Pets From Pollution

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Tuesday, October 7, 2025

Wildfire smoke, lead paint and other environmental toxins are health hazards for animals, too.

Wildfire smoke, lead paint and other environmental toxins are health hazards for animals, too.

Wildfire smoke, lead paint and other environmental toxins are health hazards for animals, too.
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Majestic wild horses are trampling Mono Lake's otherworldly landscape. The feds plan a roundup

Federal officials plan to round up wild horses roaming the Eastern Sierra, citing hazards and damage. But local tribes and others seek a different outcome.

Several dozen horses calmly graze along the shores of Mono Lake, a sparkling saline expanse spread out before the jagged Sierra Nevada mountains. The September sun is blazing. A pair of brown horses come up side by side and stare intensely at an approaching visitor.These wild equines soon may disappear from beside the ancient lake. The prospect is stirring emotional disagreement over the future of the herd, which has surged to more than three times what federal officials say the land can support.“These horses deserve a place to roam and be free, but around Mono Lake is not the place,” said Bartshe Miller of the Mono Lake Committee, an environmental nonprofit. Bartshe Miller, Eastern Sierra policy director for the Mono Lake Committee, looks out onto the landscape at Warm Springs, a remote area on the east side of Mono Lake. Earlier this year, the U.S. Forest Service and Bureau of Land Management approved a plan to round up and remove hundreds of wild horses roaming beyond the roughly 200,000 acres designated for them along the California and Nevada border. No date has been set, but it could be as soon as this fall.It would be a relief for some. Environmentalists say the horses are degrading the otherworldly landscape at Mono Lake, including bird habitat and its famed tufa — textured rock columns that would look at home on Mars. Ranchers say the animals are gobbling down plants needed to sustain their cattle. Federal officials highlight the safety hazard posed by horses that have wandered onto highways.Others see the move as a travesty. One method to oust the horses would use helicopters to drive them into a trap, which animal welfare groups say creates dangerous, even deadly, situations for horses. A pending federal bill would ban the practice.Local tribes and nonprofits have partnered to fight the roundup plan, arguing that the Indigenous community should be tapped to manage the animals that roam their ancestral lands. A separate group of plaintiffs has sued the government, claiming it’s reneging on its duty to protect the horses. A group of horses roams near the community of Benton, Calif., not far from the Nevada border. Ronda Kauk, of the Mono Lake Kootzaduka’a tribe, stands near wild horses. “We’re all living spirits,” said Ronda Kauk, a member of the Mono Lake Kootzaduka’a tribe. “And it’s sad that people just don’t care about another living thing because they think it doesn’t belong there.”Unseen evolutionFor 36 years, Dave Marquart was part of a small team that monitored wetlands rimming Mono Lake, places so inaccessible even four-wheel drives can get stuck. Flung out far on the landscape, only wildlife could enjoy them. The area was a major nesting site for yellow-headed black birds, red-winged black birds, marsh wrens, soras and Virginia rails.“There weren’t a lot of people that saw the transition that I saw, from healthy wetlands to completely trampled and devastated wetlands,” said Marquart, who was an interpretive naturalist for the Mono Lake Tufa State Natural Reserve until he retired in 2019. “It was quite a drastic change.”Marquart recalled a time when he’d encounter fewer than 50 horses. They’d bolt when they saw his vehicle coming. That fear faded and their ranks grew. Over time, he said, they stamped ponds and urinated and defecated in the water. The birds stopped showing up. Bartshe Miller holds grass he said was pulled up by the roots by wild horses roaming near Mono Lake. According to Miller, horses started arriving near the lake around 2015. Before retiring, Marquart said, he helped organize a field trip involving the Forest Service, BLM and State Parks to showcase the impacts.“Everybody saw that it was an issue and felt that something needed to be done,” he said.Today, sizable mounds of horse manure dot Warm Springs, a remote area along the eastern edge of Mono Lake that Marquart had raised the alarm about during his tenure. White bones of fallen equines rest in the alkaline meadows. Chestnut fur gleamed on a hoof attached to a leg bone.Miller, the Mono Lake Committee’s Eastern Sierra policy director, and Geoff McQuilkin, its executive director, led the way to a burbling spring rimmed by innumerable hoof prints. Surrounding vegetation was nibbled to nubs. Wildlife compete for the limited water here. The bleached bones of a wild horse lie in vegetation near the shores of Mono Lake. “The birds that would have a safe haven in that spring or be hidden away from raptors and predators overhead don’t have that opportunity anymore,” McQuilkin said.The pair first remembered the horses showing up in remote areas around the lake in 2015, as the state was gripped by drought. By 2021, as they pushed west, they landed at South Tufa, where tourists congregate to gaze at the limestone columns. In the spring of 2023, horse carcasses emerged along the shores of South Tufa and nearby Navy Beach as the snow from a winter of biblical proportions melted.“The recent deaths of these horses provide further evidence that the size of this herd cannot be supported by the landscape which they are expanding onto,” Lisa Cox, a spokesperson for the Inyo National Forest, said at the time.“They’re medicine.” Rana Saulque, vice chairwoman of the Utu Utu Gwaitu Paiute tribe, walks near a natural spring in an area where wild horses gather near the community of Benton, Calif. On a pleasantly cool day in September, Rana Saulque stared transfixed at a group of roughly 50 wild horses in the River Spring Lakes Ecological Reserve, not far from her tribe’s reservation near the town of Benton. Saulque, vice chairwoman for the Utu Utu Gwaitu Paiute tribe, draws a parallel between ousting the horses and the historic persecution of her people by the government. “They’re going to run them down with helicopters and genocide them, just like they ran down us,” she said through tears. A striking cremello horse stood out from the rest — a beloved subject for photographers who sojourn here. A brown foal with a white stripe on its muzzle teetered on toothpick legs. Several babies hugged close to their moms.Mostly, the horses peacefully graze, but two rear up momentarily. “That’s horsing around,” Saulque said. Then they begin galloping and suddenly they look powerful and sleek. Epic, like a poster for a classic western film. Dozens of wild horses graze on the River Spring Lakes Ecological Reserve. “They’re so magical,” the vice chairwoman said. “They’re medicine for people.”Federal officials stress that they have precautions in place to ensure safety during helicopter roundups. That includes avoiding peak foaling periods and hot weather that would stress the horses.The Utu Utu Gwaitu Paiute are among a coalition that wants to pause the planned roundups for two years and ultimately secure land back to set aside a sanctuary for the horses to roam. As envisioned, local tribes would help manage the herd, including darting horses with a birth control vaccine to limit population growth. Horses could be put to work at pack stations, equine therapy and rodeo schools for kids, the group says.The proposal could also help revive horse culture that runs deep in the tribal communities, Saulque said. Jim Walker, her great-great-grandfather and a respected medicine man, rode mustangs all the way to Florida, visiting tribes along the way to exchange medicine and horses. Maya Jamal Kasberg, founder of nonprofit Made by Mother Earth, is part of the coalition that wants to scrap the current plan to round up Montgomery Pass horses. Kauk’s tribe historically rode the horses from Lee Vining into Yosemite to gather basket-making materials, among other activities. Mustangs were tapped for Native American rodeos and relay races, she added.According to the coalition that includes the nonprofit American Wild Horse Conservation, the feds and groups like the Mono Lake Committee have the science all wrong. The herbivores chomp down invasive cheatgrass that poses wildfire risk, and their poop — maligned by many — actually spreads native seeds, they say. Wild and free — for nowAt the heart of the emotional battle playing out in the Eastern Sierra is the Montgomery Pass wild horse herd. According to the U.S. Forest Service, its origin is unknown. But there’s speculation that it’s linked to mustang drives between the Owens Valley and Nevada.A 1971 law declared wild horses and burros “living symbols of the historic and pioneer spirit of the West,” and made it illegal to harass, capture or kill them on public lands. But the Forest Service and BLM, which became responsible for managing them, can remove “excess animals” to preserve the health of the range.The way this often plays out is that horses are rounded up and offered for adoption or sale. Those that aren’t taken in by a private owner are shipped to pastures where they often live out their remaining days. A census last year found that there are now about 700 horses in the Montgomery Pass herd. Federal officials designated the Montgomery Pass Wild Horse Territory, a remote area spanning sagebrush steppe and pinyon pine forest east of Mono Lake. They say the land can sustainably support 138 to 230 horses. As of last year, nearly 700 were documented in an aerial survey, with most ranging outside the territory, according to the agencies. Now under a plan approved in March, up to 500 horses could be ousted, with the Forest Service leading the effort and BLM assisting.Both agencies declined requests for interviews for this story, citing pending litigation. In August, a documentary filmmaker, primary care physician and wildlife ecologist sued the government authorities overseeing the agencies, claiming the roundups will decimate the herd to the point where long-term survival is unlikely.“This case represents yet another attempt by the agencies to evade their statutory duties to protect, preserve and manage the herd,” the suit reads.The government has agreed not to round up horses before Oct. 20, according to court documents.When multiple uses collide Rancher Leslie Hunewill looks at calves and their moms at her family’s historic ranch in Bridgeport. Leslie Hunewill’s cattle ranching family sees quite a bit of “horse activity” on grazing lands in an area called the Mono Sand Flats, to the east and north of the lake. Since purchasing the right to use the public land, her outfit has been able to graze there for only about five weeks in the last two years — and not consecutively. The culprit? “A huge number of horses,” she said.“Our cattle have not been out there,” she said. “There’s nothing for them to eat.” Cows aren’t allowed on the roughly 50,000-acre expanse during the growing season. But the horses, facing no fences, go for what’s green and pushing up, she said.“It doesn’t make sense for us to overuse or overgraze the land when we need to come back to it,” she said. “So when we are doing our part to manage the portion of it that we can, which is, say, our use of the cattle on that land, that’s all well and good. But who is taking charge of the horses and saying, this is too heavy use?” The Hunewills, who have deep roots in the Eastern Sierra, operate a guest ranch in Bridgeport. The law directs agencies to manage horse populations to maintain a “thriving natural ecological balance.” BLM and the Forest Service have to consider mustangs alongside grazing, wildlife and what’s good for the land. Some say the agencies have kicked the can down the road on management of the Montgomery Pass herd.Hunewill’s family has deep roots in the Eastern Sierra. Her great-great-great-grandfather came to California in the 1860s as a gold miner. He struck it rich, and got into the lumber business. When that stopped paying out, he used his oxen to feed the town of Bodie. Her family is still in the beef business, with the meat generally staying on the West Coast.They employ quite a few mustangs at their guest ranch operation in the town of Bridgeport, including Jethro, a friendly brown fella with a splash of white on his forehead. They’re hardy horses, and can be enlisted as pack animals high up in the mountains. Some don’t need shoes because of their “great feet.” But their robustness means “everybody’s already got their mustang,” she said, stymieing the prospect of mass adoptions.Shifting dynamicsWild horse populations can increase as much as 20% a year. Montgomery Pass horses used to summer in the high country and were once kept in check by mountain lions that preyed on foals, according to John Turner, a professor at the University of Toledo College of Medicine, who studied the herd for decades.That changed around 2008 or 2009, when the horses began lingering at lower elevations, where the open country makes it difficult for lions to hunt.The herd’s population surged. Turner sees the government’s current system of rounding up horses and holding them as unsustainable. And costly.“The gathers are successful at that time, but the reproductive rate of the animals is greater than the capacity to remove them,” he said.

From the telegraph to AI, our communications systems have always had hidden environmental cost

The telegraph was hailed for its revolutionary ability to span distance. Now AI is being hailed as a great leap forward. But both came with environmental costs.

The first attempt to lay submarine telegraph cable between Britain and France. Universal History Archive/GettyWhen we post to a group chat or talk to an AI chatbot, we don’t think about how these technologies came to be. We take it for granted we can instantly communicate. We only notice the importance and reach of these systems when they’re not accessible. Companies describe these systems with metaphors such as the “cloud” or “artificial intelligence”, suggesting something intangible. But they are deeply material. The stories told about these systems centre on newness and progress. But these myths obscure the human and environmental cost of making them possible. AI and modern communication systems rely on huge data centres and submarine cables. These have large and growing environmental costs, from soaring energy use to powering data centres to water for cooling. There’s nothing new about this, as my research shows. The first world-spanning communication system was the telegraph, which made it possible to communicate between some continents in near-real time. But it came at substantial cost to the environment and humans. Submarine telegraph cables were wrapped in gutta-percha, the rubber-like latex extracted from tropical trees by colonial labourers. Forests were felled to grow plantations of these trees. Is it possible to design communications systems without such costs? Perhaps. But as the AI investment bubble shows, environmental and human costs are often ignored in the race for the next big thing. The telegraph had a sizeable environmental and social cost. Pictured: workers coiling the first transatlantic telegraph cable in the bilge tanks of the S.S. Great Eastern in 1865. Universal History Archives/Getty From the “Victorian internet” to AI Before the telegraph, long distance communication was painfully slow. Sending messages by ship could take months. In the 1850s, telegraph cables made it possible to rapidly communicate between countries and across oceans. By the late 1800s, the telegraph had become ubiquitous. Later dubbed the “Victorian internet”, the telegraph was the predecessor of today’s digital networks. Building telegraph networks was a huge undertaking. The first transatlantic cable was completed in 1858, spanning more than 4,000km between North America and Europe. The first transatlantic submarine cables made possible rapid communication between the United States and Europe. This 1857 map shows their paths. Korff Brothers, CC BY-NC-ND Australia followed closely behind. European colonists created the first telegraph lines in the 1850s between Melbourne and Williamstown. By 1872, the Overland Telegraph Line between Adelaide and Darwin had been completed. From Darwin, the message could reach the world. There are clear differences between the telegraph and today’s AI systems. But there are also clear parallels. In our time, fibre optic cables retrace many routes of the now obsolete submarine telegraph cables. Virtually all (99%) of the world’s internet traffic travels through deep sea cables. These cables carry everything from Google searches to ChatGPT interactions, transmitting data close to the speed of light from your device to faraway data centres and back. Historical accounts describe the telegraph variously as a divine gift, a human-made wonder, and a networked global intelligence, far from the material reality. These descriptions are not far off the way AI is talked about today. Grounded in extraction In the 19th century, the telegraph was commonly thought of as an emblem of progress and technological innovation. But these systems had other stories embedded, such as the logic of colonialism. One reason European powers set out to colonise the globe was to extract resources from colonies for their own use. The same extractive logic can be seen in the telegraph, a system whose self-evident technological progress won out over environmental and social costs. If you look closely at a slice of telegraph cable in a museum or at historic sites where submarine telegraph cables made landfall, you’ll see something interesting. The telegraph was a technological marvel – but it came at considerable cost. Pictured is an 1856 sample of the first submarine telegraph cable linking Newfoundland and Nova Scotia in Canada. Jemimah Widdicombe, CC BY-NC-ND Wrapped around the wires is a mixture of tarred yarn and gutta percha. Cable companies used this naturally occurring latex to insulate telegraph wires from the harsh conditions on the sea floor. To meet soaring demand, colonial powers such as Britain and the Netherlands accelerated harvesting in their colonies across Southeast Asia. Rainforests were felled for plantations and Indigenous peoples forced to harvest the latex. European colonial powers drove intensified production of gutta-percha despite the environmental and social cost. Pictured: Kayan people in Borneo harvesting the milky latex around 1910. Wikimedia, CC BY-NC-ND Australia’s telegraph came at real cost, as First Nations truth telling projects and interdisciplinary researchers have shown. The Overland Telegraph Line needed large amounts of water to power batteries and sustain human operators and their animals at repeater stations. The demand for water contributed to loss of life, forced dispossession and the pollution of waterways. The legacy of these effects are still experienced today. Echoes of this colonial logic can be seen in today’s AI systems. The focus today is on technological advancement, regardless of energy and environmental costs. Within five years, the International Energy Agency estimates the world’s data centres could require more electricity than all of Japan. AI is far more thirsty than the telegraph. Data centres produce a great deal of heat, and water has to be used to keep the servers cool. Researchers estimate that by 2027, AI usage will require between 4.2 and 6.6 billion cubic metres of water – about the same volume used by Denmark annually. With the rise of generative AI, both Microsoft and Google have significantly increased their water consumption. Manufacturing the specialised processors needed to train AI models has resulted in dirty mining, deforestation and toxic waste. As AI scholar Kate Crawford has argued, AI must be understood as a system that is: embodied and material, made from natural resources, fuel, human labour, infrastructures, logistics, histories and classifications. The same was true of the telegraph. Huge new data centres are being built to service the growth in AI and the wider internet. Pictured: a new Google data centre in the United Kingdom. Richard Newstead/Getty Planning for the future Telegraph companies and the imperial networks behind them accepted environmental extraction and social exploitation as the price of technological progress. Today’s tech giants are following a similar approach, racing to release ever more powerful models while obscuring the far reaching environmental consequences of their technologies. As governments work to improve regulation and accountability, they must go further to enforce ethical standards, mandate transparent disclosure of energy and environmental impacts and support low impact projects. Without decisive action, AI risks becoming another chapter in the long history of technologies trading human and environmental wellbeing for technological “progress”. The lesson from the telegraph is clear: we must refuse to accept exploitation as the cost of innovation. Jemimah Widdicombe works for the National Communication Museum (NCM) as Senior Curator.

Warnings of imports of caged hen eggs as Ukraine and Poland become UK’s biggest suppliers

Shift raises food safety and welfare concerns as imports can bypass standards for domestic producersUkraine and Poland have overtaken other EU countries to become the UK’s biggest egg suppliers, sparking warnings that imports of eggs from caged hens are slipping “through the back door” despite welfare pledges.Freedom of information data from the Animal and Plant Health Agency shows that, while the Netherlands supplied a large proportion of UK eggs in 2022, its share has steadily fallen. By 2025, Ukraine and Poland together accounted for more than 15m kilograms, with Spain, Italy and other southern and eastern European countries also having increased their exports. Continue reading...

Ukraine and Poland have overtaken other EU countries to become the UK’s biggest egg suppliers, sparking warnings that imports of eggs from caged hens are slipping “through the back door” despite welfare pledges.Freedom of information data from the Animal and Plant Health Agency shows that, while the Netherlands supplied a large proportion of UK eggs in 2022, its share has steadily fallen. By 2025, Ukraine and Poland together accounted for more than 15m kilograms, with Spain, Italy and other southern and eastern European countries also having increased their exports.Ukraine has provided the most eggs so far this year by weight at 8m kilograms, followed by almost 7m kilograms from Poland and 5m from Spain, according to data provided up to July this year.Imports of eggs for consumption rose sharply from about 3,500 consignments in 2023 to more than 10,000 in 2024. Although overall tonnage declined, fewer big shipments have been replaced by many small ones from regions where caged-hen systems remain widespread.Mark Williams, the chair of the British Egg Industry Council, said UK farmers were being placed at an unfair disadvantage. “Our farmers are asked to invest in ever-higher standards of hen welfare while the government leaves the back door open to eggs produced in a system that is banned in the UK. This is morally wrong and unfair, and the government should not be doing this,” he said.Williams said battery cages outlawed in the UK since 2012 were still commonplace in Ukraine, and that eggs linked to food safety issues in mainland Europe continued to be traded.After Russia invaded Ukraine in 2022, the country’s farms, factories and trade routes were badly hit. To help Ukraine’s economy survive, the UK and EU suspended tariffs on its goods, meaning products such as eggs could be exported without extra costs. Ministers argue this tariff suspension is a deliberate step to support Ukraine during wartime.Williams acknowledged the humanitarian case, but added: “Aid should not come at the expense of UK egg farmers – particularly when British retailers have already pledged to go cage-free by 2025. That promise is undermined if imports from countries with weaker welfare standards are allowed to fill the gap into the price-sensitive food service and processing sectors.”The UK currently produces about 88% of its own eggs, and imports the remaining 12%. Leading supermarkets only sell British Lion eggs in retail, following 2017 Food Standards Agency advice confirming they are safe to eat runny or raw. Imported eggs are more likely to be found in restaurants and food processing.“I am not worried about Ukrainian eggs entering retail,” Williams said. “But retail is only 65% of the market. The other two segments – food service (18%) and processing (17%) – are very price-competitive, which makes it attractive for Ukraine to sell eggs or egg products here.”skip past newsletter promotionThe planet's most important stories. Get all the week's environment news - the good, the bad and the essentialPrivacy Notice: Newsletters may contain information about charities, online ads, and content funded by outside parties. If you do not have an account, we will create a guest account for you on theguardian.com to send you this newsletter. You can complete full registration at any time. For more information about how we use your data see our Privacy Policy. We use Google reCaptcha to protect our website and the Google Privacy Policy and Terms of Service apply.after newsletter promotionHe added that UK regulations on food safety, animal welfare and environmental protection accounted for about 14% of the cost of producing a dozen eggs. “Ukraine doesn’t face those costs, giving them a huge commercial advantage. That’s why it’s so attractive right now to send eggs and egg products to the UK.”Ukraine has asked Britain to keep tariff suspensions in place until 2029. While the UK has agreed to extend tariff-free trade on most goods to that date, eggs and poultry are classed as “sensitive products” and have only been granted a shorter, two-year extension.A government spokesperson said: “We are backing our farmers with the largest nature-friendly budget in history to get more British food on our plates and we will always protect our farmers in trade deals.“We are making the supply chain fairer and are engaging with the egg industry to draft new regulations to ensure a level playing field for producers.”

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