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The fossil fuel industry is disproportionately harming low-income and minority women: Report

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Tuesday, September 17, 2024

HOUSTON — Black, Latine and Indigenous women are disproportionately suffering from the fossil fuel industry in North America, according to a new report.The report, published by Women’s Earth and Climate Action Network (WECAN), analyzed existing research about fossil fuel extraction and related facilities to explore the unequal impacts on women of color in North America. WECAN identified nine regions that appeared most frequently, including the Gulf Coast, to focus additional research. From this, the group highlighted six issues that appeared most often in research associated with the fossil fuel industry: environmental racism, increased caretaking responsibilities, pollution, fertility and reproduction impacts, “man camps” and mental health effects. Impacts were either related to race, income status, gender identity or a combination of these three.“This is an egregious list, and these [fossil fuel] activities must be stopped,” Osprey Orielle Lake, report author and executive director of WECAN, told EHN.The report highlights an “indisputable connection” between the fossil fuel industry’s practices and negative impacts to Black, Indigenous, Latine, and low-income women’s health, safety and human rights. The report points to fossil fuel pollution links to infertility and pregnancy complications, as well as rising temperatures’ links to preterm births, stillbirths, gestational diabetes, hypertensive disorders and endocrine dysfunction.For example, in the Eagle Ford Shale region of Texas, flaring was more likely to occur near Latine residents and women living within three miles of theEagle Ford shale basin had a 50% higher chance for preterm births than those living farther away, according to a 2020 study. Pennsylvania women living near active fracking sites had 40% and 30% increased risk of experiencing preterm births and high-risk pregnancies, respectively, according to a 2016 study. The authors also highlighted that air and water pollution, and climate impacts such as extreme heat, often add responsibility for women who are often taking care of children and homes. Women will “continue to be disproportionately responsible for reproductive labor,” for unpaid household tasks like dishes, cooking, cleaning, and taking care of elderly family members and children.“When water and air become polluted, making elders and children at home sick, and safe food and water supplies hard to obtain, it imposes significant stress and strain on women’s daily lives,” the authors wrote. “For example, mothers are 10 times more likely than fathers to take time off of work to care for sick children, placing women at greater risk of lost wages or being let go.” Fossil fuel production can also bring about transient work camps, or “man camps” — defined as the temporary residence areas for oil and gas project workers, predominantly young men — which have been linked to increased rates sexual assault and violence against women. “Extensive research points to the hyper-masculine nature of man camps, which leads to social isolation, lack of self-care, and significant alcohol and drug use, as well as an increase in demand for sex trafficking,” the authors wrote.Similar to Canada, in the U.S. only 2% of land is designated for Indigenous reservations, but those reservations hold about 20% of the country’s fossil fuel reserves, placing Indigenous women at an increased risk from man camps, amidst an epidemic of missing and murdered Indigenous peoples.This combination of pollution and physical health effects, increased unpaid caretaking, and the potential for violence leave women more susceptible to mental health effects from fossil fuel production, the authors write, citing numerous studies from Colorado to Pennsylvania that linked oil and gas extraction to depression, anxiety and chronic stress. These impacts are expected to grow as the fossil fuel industry expands. The International Energy Forum anticipates that liquified natural gas trade, for example, will increase 25% by 2028. Petrochemical facilities looking to meet the growing demand for plastics, which is expected to triple by 2060, are also expected to expand.The report notes the Gulf Coast is leading in the nation for liquified natural gas production and expansion. At least six facilities were proposed in Texas this year, with half moving forward in construction. Additionally, the Gulf Coast’s petrochemical and oil refinery presence is the largest in the nation. In 2020, of the top 10 refineries that have cancer-causing benzene levels above the U.S. Environmental Protection Agency’s action levels, six were along Texas’ Gulf Coast and are located within predominantly BIPOC (Black, Indigenous, and people of color) communities. Since then, the number of refineries above the EPA action level have decreased to six, but the Houston-area Pemex (formally Shell) Deer Park Refinery is exceeding the standard more than any of the other remaining refineries and its annual emissions increased to 17.3 micrograms per cubic meter in 2023 — nearly double the EPA’s action level. Authors of the report note that the percentage of the population that is Latine in Deer Park is nearly double the national average, at 36.8%. At the same time, climate change is expected to accelerate through the fossil fuel industry’s climate-warming emissions, and roughly 80% of climate refugees are women. This displacement could contribute to further issues finding work, leading to higher risks of physical and sexual violence.“There is an urgent need to address these crises because the lives of women and their communities are at stake,” Orielle Lake told EHN. “The report calls for a just transition that addresses the needs of communities most impacted and vulnerable to the climate crisis and continued reliance on fossil fuels.” In addition, the group put out a series of recommendations for banking institutions that finance or in some way monetarily fossil fuel companies, including: divesting, adhering to human rights recommendations from the United Nations and adhering to commitments from the Paris Climate Agreement.“Women, in all of their diversity, must be at the center of climate and energy decision-making,” Orielle Lake said.

HOUSTON — Black, Latine and Indigenous women are disproportionately suffering from the fossil fuel industry in North America, according to a new report.The report, published by Women’s Earth and Climate Action Network (WECAN), analyzed existing research about fossil fuel extraction and related facilities to explore the unequal impacts on women of color in North America. WECAN identified nine regions that appeared most frequently, including the Gulf Coast, to focus additional research. From this, the group highlighted six issues that appeared most often in research associated with the fossil fuel industry: environmental racism, increased caretaking responsibilities, pollution, fertility and reproduction impacts, “man camps” and mental health effects. Impacts were either related to race, income status, gender identity or a combination of these three.“This is an egregious list, and these [fossil fuel] activities must be stopped,” Osprey Orielle Lake, report author and executive director of WECAN, told EHN.The report highlights an “indisputable connection” between the fossil fuel industry’s practices and negative impacts to Black, Indigenous, Latine, and low-income women’s health, safety and human rights. The report points to fossil fuel pollution links to infertility and pregnancy complications, as well as rising temperatures’ links to preterm births, stillbirths, gestational diabetes, hypertensive disorders and endocrine dysfunction.For example, in the Eagle Ford Shale region of Texas, flaring was more likely to occur near Latine residents and women living within three miles of theEagle Ford shale basin had a 50% higher chance for preterm births than those living farther away, according to a 2020 study. Pennsylvania women living near active fracking sites had 40% and 30% increased risk of experiencing preterm births and high-risk pregnancies, respectively, according to a 2016 study. The authors also highlighted that air and water pollution, and climate impacts such as extreme heat, often add responsibility for women who are often taking care of children and homes. Women will “continue to be disproportionately responsible for reproductive labor,” for unpaid household tasks like dishes, cooking, cleaning, and taking care of elderly family members and children.“When water and air become polluted, making elders and children at home sick, and safe food and water supplies hard to obtain, it imposes significant stress and strain on women’s daily lives,” the authors wrote. “For example, mothers are 10 times more likely than fathers to take time off of work to care for sick children, placing women at greater risk of lost wages or being let go.” Fossil fuel production can also bring about transient work camps, or “man camps” — defined as the temporary residence areas for oil and gas project workers, predominantly young men — which have been linked to increased rates sexual assault and violence against women. “Extensive research points to the hyper-masculine nature of man camps, which leads to social isolation, lack of self-care, and significant alcohol and drug use, as well as an increase in demand for sex trafficking,” the authors wrote.Similar to Canada, in the U.S. only 2% of land is designated for Indigenous reservations, but those reservations hold about 20% of the country’s fossil fuel reserves, placing Indigenous women at an increased risk from man camps, amidst an epidemic of missing and murdered Indigenous peoples.This combination of pollution and physical health effects, increased unpaid caretaking, and the potential for violence leave women more susceptible to mental health effects from fossil fuel production, the authors write, citing numerous studies from Colorado to Pennsylvania that linked oil and gas extraction to depression, anxiety and chronic stress. These impacts are expected to grow as the fossil fuel industry expands. The International Energy Forum anticipates that liquified natural gas trade, for example, will increase 25% by 2028. Petrochemical facilities looking to meet the growing demand for plastics, which is expected to triple by 2060, are also expected to expand.The report notes the Gulf Coast is leading in the nation for liquified natural gas production and expansion. At least six facilities were proposed in Texas this year, with half moving forward in construction. Additionally, the Gulf Coast’s petrochemical and oil refinery presence is the largest in the nation. In 2020, of the top 10 refineries that have cancer-causing benzene levels above the U.S. Environmental Protection Agency’s action levels, six were along Texas’ Gulf Coast and are located within predominantly BIPOC (Black, Indigenous, and people of color) communities. Since then, the number of refineries above the EPA action level have decreased to six, but the Houston-area Pemex (formally Shell) Deer Park Refinery is exceeding the standard more than any of the other remaining refineries and its annual emissions increased to 17.3 micrograms per cubic meter in 2023 — nearly double the EPA’s action level. Authors of the report note that the percentage of the population that is Latine in Deer Park is nearly double the national average, at 36.8%. At the same time, climate change is expected to accelerate through the fossil fuel industry’s climate-warming emissions, and roughly 80% of climate refugees are women. This displacement could contribute to further issues finding work, leading to higher risks of physical and sexual violence.“There is an urgent need to address these crises because the lives of women and their communities are at stake,” Orielle Lake told EHN. “The report calls for a just transition that addresses the needs of communities most impacted and vulnerable to the climate crisis and continued reliance on fossil fuels.” In addition, the group put out a series of recommendations for banking institutions that finance or in some way monetarily fossil fuel companies, including: divesting, adhering to human rights recommendations from the United Nations and adhering to commitments from the Paris Climate Agreement.“Women, in all of their diversity, must be at the center of climate and energy decision-making,” Orielle Lake said.


HOUSTON — Black, Latine and Indigenous women are disproportionately suffering from the fossil fuel industry in North America, according to a new report.

The report, published by Women’s Earth and Climate Action Network (WECAN), analyzed existing research about fossil fuel extraction and related facilities to explore the unequal impacts on women of color in North America. WECAN identified nine regions that appeared most frequently, including the Gulf Coast, to focus additional research. From this, the group highlighted six issues that appeared most often in research associated with the fossil fuel industry: environmental racism, increased caretaking responsibilities, pollution, fertility and reproduction impacts, “man camps” and mental health effects. Impacts were either related to race, income status, gender identity or a combination of these three.

“This is an egregious list, and these [fossil fuel] activities must be stopped,” Osprey Orielle Lake, report author and executive director of WECAN, told EHN.

The report highlights an “indisputable connection” between the fossil fuel industry’s practices and negative impacts to Black, Indigenous, Latine, and low-income women’s health, safety and human rights.

The report points to fossil fuel pollution links to infertility and pregnancy complications, as well as rising temperatures’ links to preterm births, stillbirths, gestational diabetes, hypertensive disorders and endocrine dysfunction.

For example, in the Eagle Ford Shale region of Texas, flaring was more likely to occur near Latine residents and women living within three miles of the

Eagle Ford shale basin had a 50% higher chance for preterm births than those living farther away, according to a 2020 study. Pennsylvania women living near active fracking sites had 40% and 30% increased risk of experiencing preterm births and high-risk pregnancies, respectively, according to a 2016 study.

The authors also highlighted that air and water pollution, and climate impacts such as extreme heat, often add responsibility for women who are often taking care of children and homes. Women will “continue to be disproportionately responsible for reproductive labor,” for unpaid household tasks like dishes, cooking, cleaning, and taking care of elderly family members and children.

“When water and air become polluted, making elders and children at home sick, and safe food and water supplies hard to obtain, it imposes significant stress and strain on women’s daily lives,” the authors wrote. “For example, mothers are 10 times more likely than fathers to take time off of work to care for sick children, placing women at greater risk of lost wages or being let go.”

Fossil fuel production can also bring about transient work camps, or “man camps” — defined as the temporary residence areas for oil and gas project workers, predominantly young men — which have been linked to increased rates sexual assault and violence against women.

“Extensive research points to the hyper-masculine nature of man camps, which leads to social isolation, lack of self-care, and significant alcohol and drug use, as well as an increase in demand for sex trafficking,” the authors wrote.

Similar to Canada, in the U.S. only 2% of land is designated for Indigenous reservations, but those reservations hold about 20% of the country’s fossil fuel reserves, placing Indigenous women at an increased risk from man camps, amidst an epidemic of missing and murdered Indigenous peoples.

This combination of pollution and physical health effects, increased unpaid caretaking, and the potential for violence leave women more susceptible to mental health effects from fossil fuel production, the authors write, citing numerous studies from Colorado to Pennsylvania that linked oil and gas extraction to depression, anxiety and chronic stress.

These impacts are expected to grow as the fossil fuel industry expands. The International Energy Forum anticipates that liquified natural gas trade, for example, will increase 25% by 2028. Petrochemical facilities looking to meet the growing demand for plastics, which is expected to triple by 2060, are also expected to expand.

The report notes the Gulf Coast is leading in the nation for liquified natural gas production and expansion. At least six facilities were proposed in Texas this year, with half moving forward in construction.

Additionally, the Gulf Coast’s petrochemical and oil refinery presence is the largest in the nation. In 2020, of the top 10 refineries that have cancer-causing benzene levels above the U.S. Environmental Protection Agency’s action levels, six were along Texas’ Gulf Coast and are located within predominantly BIPOC (Black, Indigenous, and people of color) communities. Since then, the number of refineries above the EPA action level have decreased to six, but the Houston-area Pemex (formally Shell) Deer Park Refinery is exceeding the standard more than any of the other remaining refineries and its annual emissions increased to 17.3 micrograms per cubic meter in 2023 — nearly double the EPA’s action level. Authors of the report note that the percentage of the population that is Latine in Deer Park is nearly double the national average, at 36.8%.

At the same time, climate change is expected to accelerate through the fossil fuel industry’s climate-warming emissions, and roughly 80% of climate refugees are women. This displacement could contribute to further issues finding work, leading to higher risks of physical and sexual violence.

“There is an urgent need to address these crises because the lives of women and their communities are at stake,” Orielle Lake told EHN. “The report calls for a just transition that addresses the needs of communities most impacted and vulnerable to the climate crisis and continued reliance on fossil fuels.”

In addition, the group put out a series of recommendations for banking institutions that finance or in some way monetarily fossil fuel companies, including: divesting, adhering to human rights recommendations from the United Nations and adhering to commitments from the Paris Climate Agreement.

“Women, in all of their diversity, must be at the center of climate and energy decision-making,” Orielle Lake said.

Read the full story here.
Photos courtesy of

How dry cleaning might raise the risk of cancer, and what to do about it

A new study found links between a toxic dry cleaning chemical and liver cancer. Trump officials are reconsidering an EPA plan to phase it out.

Environmental and health advocates have long sought to curb dangerous chemicals used in dry cleaning. Now a new study adds to the evidence of harms, linking a common dry cleaning chemical to liver disease and cancer.Here’s what you need to know about the risks.How dry cleaning worksDespite the name, clothes don’t stay “dry” when dry-cleaned. Instead, garments are loaded into drums and soaked in chemicals that dissolve stains.Before modern cleaning systems were developed, workers would manually move solvent-soaked garments from washer to dryer, creating a direct exposure route and increasing the chances of environmental contamination. Today, cleaners wash and dry everything in the same drum. Clothes are then pressed or steamed.What are the health risks?One of the most widely used dry cleaning chemicals is an industrial solvent called PCE, also known as tetrachloroethylene, perchloroethylene and perc. The Environmental Protection Agency considers PCE a probable human carcinogen, and it has been linked to bladder cancer, multiple myeloma and non-Hodgkin lymphoma.Follow Climate & environmentLast year, the EPA announced a new rule banning PCE for most uses and giving dry cleaners a 10-year phaseout period. The Trump administration is reconsidering this decision, according to an EPA spokesperson.But a recent study found that exposure to PCE tripled the risk of liver fibrosis, excessive scarring that can lead to liver disease and liver cancer. Researchers found that repeated exposure to PCE, which is detectable in an estimated 7 percent of the U.S. population, increased the likelihood of liver damage.“If you’ve been exposed to PCE, talk to your doctor about it,” said Brian P. Lee, associate professor of medicine at the University of Southern California and the study’s lead author.The study found that higher-income households faced the most risk from PCE exposure because they are more likely to use dry cleaning. People who work in cleaning facilities or live nearby also face an elevated risk due to prolonged exposure. Once the chemical gets into a building or the ground, it’s very difficult to remove. The EPA estimates that roughly 6,000 dry cleaners, mostly small businesses, still use PCE in the United States.Lee said the study adds to the growing list of harms associated with the chemical.Studies have also shown that PCE can linger on clothing after dry cleaning and that it builds up over time after repeated cleanings and can contaminate indoor air as it vaporizes.“We now have decades of studies confirming that these widespread dry cleaning chemicals are exposing people to unacceptable risks of cancer and other serious diseases,” said Jonathan Kalmuss-Katz, a senior attorney at the advocacy group Earthjustice. “Those harms are entirely avoidable.”Jon Meijer, director of membership at the Drycleaning & Laundry Institute International, a trade association, said the group supports the original rule passed under the Biden administration and explained that those who still use the chemical do so because of financial challenges.“It’s time for a phaseout of perchloroethylene,” Meijer said. “There are so many alternatives out there.”Safer alternativesExperts say there are plenty of alternatives to using harmful dry cleaning chemicals, but some are safer than others.Go dry-clean free: Try purchasing clothes that don’t need to be dry-cleaned. Selecting cotton blazers and other professional attire, for example, can reduce dry cleaning visits, said Tasha Stoiber, a senior scientist at the Environmental Working Group, an advocacy group. “The easiest thing is to look for professional staples that don’t need to be dry-cleaned,” Stoiber said.Hand-washing: Some “dry-clean only” garments can be delicately hand-washed in cold water with a gentle detergent specific to the particular fabric you’re using. Hanging delicate clothes to dry after a wash can avoid damage from heated air dryers.Steaming: Steam cleaning can freshen up clothes by removing odors, bacteria and small stains without needing a full wash.Commercial wet cleaning: Commercial wet cleaning relies on biodegradable detergents and water instead of toxic solvents.Liquid carbon dioxide: Experts suggest selecting dry cleaners that use liquid carbon dioxide as a solvent to remove dirt and avoid toxic chemicals.Watch out for greenwashingSome businesses advertise eco-friendly or “green” alternatives to dry cleaning. But experts warn that new chemicals can have their own downsides.Diana Ceballos, an assistant professor in the University of Washington’s Department of Environmental and Occupational Health Sciences, said that dry cleaning technology has improved dramatically and that new solvents and machinery can be more effective than PCE.Still, Cebellos said that there can be a lot of “regrettable substitution” when it comes to alternatives to PCE and that some that are billed as “safe” or “organic” could also be toxic.“Most options are far better,” Cebellos said. “But there’s a lot of greenwashing” out there, so people should ask questions and do “a little bit of research.”

Emergency Crews Respond to Ammonia Leak at Mississippi Fertilizer Plant

(Reuters) -Emergency teams responded on Wednesday to a chemical leak, possibly caused by an explosion, at a fertilizer plant in Central Mississippi...

(Reuters) -Emergency teams responded on Wednesday to a chemical leak, possibly caused by an explosion, at a fertilizer plant in Central Mississippi, according to Governor Tate Reeves and media reports. No injuries were immediately reported.A tall cloud of orange vapor could be seen rising over the facility in a photo from the scene of the plant posted online by television station WJTV, a CBS News affiliate in Jackson, Mississippi, the state capital.The governor identified the leaking chemical as anhydrous ammonia, a toxic substance that can cause irritation to the eyes and lungs.Fertilizer manufacturer CF Industries said in statement that "all employees and contractors on site at the time of the incident have been safely accounted for, with no injuries reported."It said it had notified government officials of an "incident" that occurred at its Yazoo City Complex at about 4:25 p.m. CT (2225 GMT).Reeves said in a statement posted on social media that state authorities were "actively responding to the anhydrous ammonia leak" at the plant, located about 50 miles (80.5 km) north of Jackson."Initial reports indicate the leak is due to an explosion. At this time, no deaths or injuries have been reported," the governor said.Personnel from the Mississippi Department of Environmental Quality were among various teams dispatched to the scene, WJTV reported.The governor said residents living along two nearby streets should be evacuated, while other residents in the vicinity were encouraged to shelter in place.(Reporting by Steve Gorman in Los Angeles; Additional reporting by Costas Pita in Los Angeles and Angela Christy in Bengaluru; Editing by Himani Sarkar and Stephen Coates)Copyright 2025 Thomson Reuters.

EPA Proposes Approving Fifth ‘Forever Chemical’ Pesticide

November 5, 2025 – In line with its plan to continue pesticide approvals despite the government shutdown, the Environmental Protection Agency (EPA) announced this week that it will register a new weedkiller for use in corn, soybean, wheat, and canola fields. The herbicide, epyrifenacil, is the fifth pesticide set to be approved by the agency […] The post EPA Proposes Approving Fifth ‘Forever Chemical’ Pesticide appeared first on Civil Eats.

November 5, 2025 – In line with its plan to continue pesticide approvals despite the government shutdown, the Environmental Protection Agency (EPA) announced this week that it will register a new weedkiller for use in corn, soybean, wheat, and canola fields. The herbicide, epyrifenacil, is the fifth pesticide set to be approved by the agency within the last few months that fits into the group of chemicals called PFAS (per- and polyfluoroalkyl substances), based on a commonly used definition. And the agency is moving fast. The first pesticide was proposed for registration in April; that pesticide, called cyclobutrifluram, was finalized today. PFAS are linked to a wide range of health harms and are commonly called “forever chemicals” because they don’t break down easily and they accumulate in soil and water. In 2023, however, the EPA officially adopted a narrower definition. With the proposed approval of epyrifenacil, the agency for the first time has waded into the debate over which pesticides are PFAS and whether concerns voiced over other recent registrations of similar pesticides are warranted. In its announcement, the agency noted that epyrifenacil “contains a fluorinated carbon” and directed the public to a new website where it lays out its position on pesticides that contain fluorinated carbons. Whether those chemicals fit the definition of PFAS doesn’t matter, the agency argues, because under the law, the EPA evaluates the risks of each chemical individually. “Regardless of whether a chemical meets a specific structural definition or is part of a category or class of chemicals, the Agency utilizes a comprehensive assessment process under [the Federal Insecticide, Fungicide, and Rodenticide Act] to evaluate the potential risks of pesticide use,” it said. “This robust, chemical-specific process considers both hazard and exposure in determining whether the pesticide under review may pose risk to human health or the environment.” Epyrifenacil was developed by Japan-based Sumitomo Chemical, which owns Valent U.S.A. in the U.S. It’s one of a new class of herbicides designed to help farmers kill weeds that have developed resistance to popular chemicals like glyphosate. It’s also specifically designed for farmers to spray on cover crops and in no-till systems to prep fields for planting. The pesticide industry has lobbied in recent years to get the EPA to approve new chemicals to address what it calls an “innovation backlog.” Nathan Donley, environmental health science director at the Center for Biological Diversity, said in a statement that an “office run by chemical lobbyists” is whitewashing what is already known about the risks of PFAS. “Not only did the pesticide industry get a proposed approval of its dangerous new product,” he said, “but it also got a shiny new government website parroting its misleading talking points.” (Link to this post.) The post EPA Proposes Approving Fifth ‘Forever Chemical’ Pesticide appeared first on Civil Eats.

Yeast on Mars could survive, unique new research shows

A new study from scientists in India shows that yeast could survive on Mars, tolerating both shockwaves from impacts and toxic perchlorate salts. The post Yeast on Mars could survive, unique new research shows first appeared on EarthSky.

View larger. | Saccharomyces cerevisiae, also known as baker’s yeast. Could yeast survive on Mars? A new study from scientists in India shows how yeast on Mars could, in fact, tolerate the red planet’s harsh conditions. Image via Mogana Das Murtey/ Patchamuthu Ramasamy/ Wikimedia Commons (CC BY 3.0). Yeasts are single-celled microorganisms of the fungus kingdom. Could yeast survive on Mars? A new study from researchers in India shows that some of them would be able to. The yeast cells were exposed to high-intensity shockwaves and toxic perchlorate salts in lab tests. Many of them survived. Science matters. Wonder matters. You matter.Join our 2025 Donation Campaign today. Yeast on Mars When it comes to earthly organisms that could conceivably survive on Mars’ harsh surface, the options are seemingly few. But scientists in India found one that just might be able to: yeast. Researchers at the Indian Institute of Science (IISc) and the Physical Research Laboratory (PRL) said on October 24, 2025, that simple yeast cells could survive shockwaves from meteorite impacts and highly toxic perchlorate salts. The research team used simple baker’s yeast (Saccharomyces cerevisiae) for their experiments. Yeasts are tiny, single-celled microorganisms that are classified as part of the fungus kingdom. There are more than 1,500 species currently known. The researchers published their peer-reviewed findings in the journal PNAS Nexus on October 14, 2025. Shockwaves and salts To find out if yeast could actually survive the extreme conditions on Mars, the researchers exposed their yeast samples to two kinds of environmental factors. These were shock waves, mimicking meteorite impacts or marsquakes, and perchlorate salts, which are highly toxic and common on Mars. The shockwaves reached mach 5.6 in intensity. In addition, the researchers exposed the yeast cells to 100 mM sodium perchlorate. This was done both in isolation from the shockwaves and in combination with the shockwaves. These unique experiments had not been done before, explained lead author Riya Dhage, a project assistant at the Indian Institute of Science: One of the biggest hurdles was setting up the HISTA tube to expose live yeast cells to shock waves – something that has not been attempted before – and then recovering yeast with minimum contamination for downstream experiments. What makes this work unique is the integration of shock wave physics and chemical biology with molecular cell biology to probe how life might cope with such Mars-like stressors. Could life survive on Mars? Yeast offers a clue #EarthDotCom #EarthSnap #Earth — Earth.com (@earthdotcom.bsky.social) 2025-10-25T13:25:36Z Yeast on Mars survived in simulations Remarkably, many of the yeast cells did survive. Notably, this was the case whether they were tested with the shockwaves and perchlorates together or separately. The growth of the cells did slow down, but the stressful and toxic conditions didn’t kill them. Co-author Purusharth Rajyaguru said: We were surprised to observe yeast surviving the Mars-like stress conditions that we used in our experiments. We hope that this study will galvanize efforts to have yeast on board in future space explorations. So, how did they survive? The researchers said that ribonucleoprotein (RNP) condensates, produced by the cells, likely saved them. Those are tiny structures that have no membranes. They help protect and reorganize mRNA (messenger RNA) when the cells are under stress. mRNA is a type of single-stranded RNA (ribonucleic acid) involved in protein creation. In fact, the shockwaves triggered the creation of two types of RNPs, called stress granules and P-bodies. The perchlorates, meanwhile, caused the formation of just P-bodies. In some cases, however, the yeast cells weren’t able to form those structures. And consequently, those cells didn’t survive. View larger. | This image shows yeast cells with the protective RNP condensates in them (yellow dots). Image via Riya Dhage/ Indian Institute of Science. Lead author Riya Dhage and co-author Purusharth Rajyaguru at the Indian Institute of Science. Image via Swati Lamba/ Indian Institute of Science. Possible biosignatures The fact that many of the yeast cells did survive was surprising, and shows that similar kinds of cells could indeed survive on Mars in some instances. With that in mind, the protective RNP condensates might actually be good biosignatures – signs of life – when searching for evidence of extraterrestrial lifeforms. Dhage said: What makes this work unique is the integration of shock wave physics and chemical biology with molecular cell biology to probe how life might cope with such Mars-like stressors. Bottom line: A new study from scientists in India shows that yeast could survive on Mars, tolerating both shockwaves from impacts and toxic perchlorate salts. Source: Ribonucleoprotein (RNP) condensates modulate survival in response to Mars-like stress conditions Via Indian Institute of Science Read more: Life on Mars? Odd rings and spots tantalize scientists Read more: Prototaxites: Oldest giant organisms a lost kingdom of life?The post Yeast on Mars could survive, unique new research shows first appeared on EarthSky.

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