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Utah Bans Fluoride In Public Drinking Water

Republican Gov. Spencer Cox signed the legislation despite widespread opposition from dentists and national health organizations.

SALT LAKE CITY (AP) — Utah has become the first state to ban fluoride in public drinking water, despite widespread opposition from dentists and national health organizations.Republican Gov. Spencer Cox signed legislation late Thursday that bars cities and communities from deciding whether to add the mineral to their water systems.Fluoride strengthens teeth and reduces cavities by replacing minerals lost during normal wear and tear, according to the U.S. Centers for Disease Control and Prevention.Utah lawmakers who pushed for a ban said putting fluoride in water was too expensive. Cox, who grew up and raised his own children in a community without fluoridated water, compared it recently to being “medicated” by the government.The ban comes weeks after U.S. Health Secretary Robert F. Kennedy Jr., who has expressed skepticism about water fluoridation, was sworn into office.More than 200 million people in the U.S., or almost two-thirds of the population, receive fluoridated water through community water. The addition of low levels of fluoride to drinking water has long been considered one of the greatest public health achievements of the last century.But some cities across the country have gotten rid of fluoride from their water, and other municipalities are considering doing the same. A few months ago, a federal judge ordered the U.S. Environmental Protection Agency to regulate fluoride in drinking water because high levels could pose a risk to the intellectual development of children.We Don't Work For Billionaires. We Work For You.Big money interests are running the government — and influencing the news you read. While other outlets are retreating behind paywalls and bending the knee to political pressure, HuffPost is proud to be unbought and unfiltered. Will you help us keep it that way? You can even access our stories ad-free.You've supported HuffPost before, and we'll be honest — we could use your help again. We won't back down from our mission of providing free, fair news during this critical moment. But we can't do it without you.For the first time, we're offering an ad-free experience to qualifying contributors who support our fearless journalism. We hope you'll join us.You've supported HuffPost before, and we'll be honest — we could use your help again. We won't back down from our mission of providing free, fair news during this critical moment. But we can't do it without you.For the first time, we're offering an ad-free experience to qualifying contributors who support our fearless journalism. We hope you'll join us.Support HuffPostAlready contributed? Log in to hide these messages.The president of the American Dental Association, Brett Kessler, has said the amounts of fluoride added to drinking water are below levels considered problematic.Opponents warn the ban will disproportionately affect low-income residents who may rely on public drinking water having fluoride as their only source of preventative dental care. Low-income families may not be able to afford regular dentist visits or the fluoride tablets some people buy as a supplement in cities without fluoridation.The sponsor of the Utah legislation, Republican Rep. Stephanie Gricius, acknowledged fluoride has benefits, but said it was an issue of “individual choice” to not have it in the water.

L.A. fire contaminant levels could sicken the marine food chain, new tests show

Levels of lead and other heavy metals spiked in L.A.'s coastal waters after the January fires, raising serious concerns for the long-term health of the marine food chain.

Levels of lead and other heavy metals spiked in the coastal waters off Los Angeles after January’s fires, raising serious concerns for the long-term health of fish, marine mammals and the marine food chain, according to test results released Thursday by the nonprofit environmental group Heal the Bay.For human surfers and swimmers, the results were somewhat encouraging. Contaminant levels from sampled water weren’t high enough to pose likely health risks to recreational beachgoers. But tests of seawater collected before and after the heavy rains that came in late January, after the fires abated, identified five heavy metals — beryllium, copper, chromium, nickel and lead — at levels significantly above established safety thresholds for marine life.Even at relatively low concentrations, these metals can damage cells and disrupt reproduction and other biological processes in sea animals.The metals also accumulate in the tissues of animals exposed to them, and then make their way up the food chain as those organisms are eaten by larger ones.“Most of these metals are easy to transfer through the food web and impact humans directly or indirectly, via food or drinking water,” said Dimitri Deheyn, a marine biologist at UC San Diego’s Scripps Institution of Oceanography. All are found in dust and rocks, and aren’t harmful in the context of those minute, naturally-occurring exposures. “That is why these elements are dangerous,” Deheyn said. “Our body is designed to take them up, but we are usually exposed to only a small amount of it.”On Jan. 24 and Jan. 25 — before the rain that came the following week — Heal the Bay staff collected seawater samples from eight locations along the coastline in or near the Palisades burn scar, in addition to control samples well outside the burn zone at Paradise Cove in Malibu and Malaga Cove in Palos Verdes Estates.They took additional samples on Jan. 28, after the first major storm in months dropped half an inch of rain on the L.A. basin and flushed debris into the sea.They tested for 116 pollutants. The vast majority were either not present or detected in only minuscule amounts in almost all the samples collected.But levels of beryllium, copper, chromium, nickel and lead were two to four times higher than the maximum allowed under California state law at Big Rock Beach in Malibu, where the wreckage of several destroyed houses still lie on the sand. “That’s not surprising as that’s where we have burned debris within the high tide line, [where] every minute of every day the ocean is lapping more and more contaminants into the sea,” said Heal the Bay Chief Executive Tracy Quinn.At the Santa Monica Pier and Dockweiler Beach, both of which are south of the burn scar, levels of both lead and chromium were roughly triple California’s safety threshold for marine life. At the Santa Monica test location after the rains, the level of beryllium — a metal that is toxic to fish and corals and causes respiratory distress in humans — was more than 10 times the maximum limit allowed.Further study is needed to determine whether fire-related contaminants are pooling in those areas or if the high levels are coming from another source of pollution, Quinn said. “We don’t recommend that people consume fish that are caught in the Santa Monica Bay right now,” Quinn said.The levels in these first results suggest that more testing is warranted, said Susanne Brander, an associate professor and ecotoxicologist at Oregon State University. “Anytime there’s a large residential wildfire, this is the kind of contamination you’re going to see,” she said. “I would look at these results and say, OK, we need to test soils, we need to test drinking water,.”Quinn noted several limitations in Heal the Bay’s data. The samples were collected in late January, and may not be representative of current ocean conditions. There are also no baseline data showing prefire conditions in the same area to which they could compare their samples, because there are no regular testing programs for these contaminants, she said.The organization also sampled 25 different polycyclic aromatic hydrocarbons, organic compounds that form when oil, wood or garbage burns. The organization expects results in the coming weeks, Quinn said. January’s fires and the heavy rains that followed sent unprecedented amounts of ash, debris and chemical residue coursing into the sea via the L.A. region’s massive network of storm drains and concrete-lined rivers.The Palisades and Eaton fires burned more than 40,000 acres and destroyed at least 12,000 buildings. In the months since they erupted, the remnants of cars, plastics, batteries, household chemicals and other potentially toxic material have continued to wash into the sea and up onto beaches.“I don’t think there’s a precedent for this kind of input into the ocean ecosystem,” marine biologist Noelle Bowlin said in January.In addition to fire contamination, California’s sea life is also under threat from an outbreak of domoic acid, a neurotoxin released by some marine algae species.Hundreds of animals have washed up sick or dead along California’s southern and central coasts in recent weeks, in the fourth domoic acid event in as many years.While nutrients such as sulfate and phosphorous that feed harmful algae were among the substances the fires released into the sea, Heal the Bay said it has not found a correlation between fire-related pollution and the outbreak now sickening marine animals.Understanding all of the effects that heavy metals, chemicals, bacteria and other pollutants released by the fire will have on the marine ecosystem “will take a huge, collaborative effort,” said Jenn Cossaboon, a fourth-year student at the UC Davis School of Veterinary Medicine who recently finished a doctorate on endocrine disruption in fish.“Species at each level of the food chain, from invertebrates to fish, birds, marine mammals and humans, can be affected differently based on their physiology and feeding strategies,” she said. “It will be very important to connect each of these pieces of the puzzle to really understand the impacts on the food web.”

Canadian company in negotiations with Trump to mine seabed

Environmentalists call bid to skirt UN treaty ‘reckless’ amid fears that mining will cause irreversible biodiversity lossA Canadian deep-sea mining firm has revealed it has been negotiating with the Trump administration to bypass a UN treaty and potentially gain authorisation from the US to mine in international waters.The revelation has stunned environmentalists, who condemned the move as “reckless” and a “slap in the face for multilateralism”. Continue reading...

A Canadian deep-sea mining firm has revealed it has been negotiating with the Trump administration to bypass a UN treaty and potentially gain authorisation from the US to mine in international waters.The revelation has stunned environmentalists, who condemned the move as “reckless” and a “slap in the face for multilateralism”.It comes at a time when calls for a pause in deep-sea mining are intensifying. More than 30 governments are calling for a moratorium, arguing that there is not enough data for exploitation of the seabed to go ahead, and scientists have warned industrial mining could cause irreversible loss of biodiversity.In a statement on its website on Thursday, Gerard Barron, chief executive of The Metals Company (TMC), said: “We believe we have sufficient knowledge to get started and prove we can manage environmental risks.The International Seabed Authority talks in Kingston, Jamaica. Photograph: IISD“What we need is a regulator with a robust regulatory regime, and who is willing to give our application a fair hearing. That’s why we’ve formally initiated the process of applying for licences and permits under the existing US seabed mining code.”Countries have been meeting in Jamaica this week at the UN-affiliated International Seabed Authority (ISA) to decide rules governing the extraction of metals such as copper and cobalt from the seabed.They also discussed actions to take if a mining application was submitted before regulations were set. The ISA council has said no application should be considered before its rules are finalised, which is a long way off.The Metals Company said it had initiated a process under the US Department of Commerce to apply for exploration and permits to extract minerals from the ocean floor. It plans to apply under the 1980 Deep Seabed Hard Mineral Resources Act instead of the ISA, and is moving forward “with urgency”.TMC has already carried out extensive exploratory work in the Clarion-Clipperton Zone, an area of the Pacific Ocean seabed between Mexico and Hawaii that is rich in polymetallic nodules but also a wealth of newly discovered species.The ISA, established in 1994 under a treaty ratified by 169 member states plus the EU, has jurisdiction over mining in international waters and decides how extraction should proceed. However, the US has never ratified the treaty.Louisa Casson, a campaigner for Greenpeace International, said: “This announcement is a slap in the face to international cooperation,” adding that it was “an insult to multilateralism”.Duncan Currie, legal adviser for the Deep Sea Conservation Coalition, said: “TMC appears to want to pivot from seabed mining without regulations to seabed mining entirely outside of all international frameworks. A moratorium is needed to prevent this kind of international conflict, discord and chaos.”Georgina María Guillén Grillo, a representative from Costa Rica at the ISA talks, told the New York Times: “This seems a totally improper move by the Metals Company.”

As Starlink and Other Satellites Proliferate, Astronomers Learn to Manage Interference

Swarms of satellites launched by SpaceX and other companies are disrupting astronomical observations. Here's how scientists are coping

In the next few months, from its perch atop a mountain in Chile, the Vera C. Rubin Observatory will begin surveying the cosmos with the largest camera ever built. Every three nights, it will produce a map of the entire southern sky filled with stars, galaxies, asteroids and supernovae — and swarms of bright satellites ruining some of the view.Astronomers didn’t worry much about satellites photobombing Rubin’s images when they started drawing up plans for the observatory more than two decades ago. But as the space around Earth becomes increasingly congested, researchers are having to find fresh ways to cope — or else lose precious data from Rubin and hundreds of other observatories.The number of working satellites has soared in the past five years to around 11,000, mostly because of constellations of orbiters that provide Internet connectivity around the globe (see ‘Satellite surge’). Just one company, SpaceX in Hawthorne, California, has more than 7,000 operational Starlink satellites, all launched since 2019; OneWeb, a space communications company in London, has more than 630 satellites in its constellation. On paper, tens to hundreds of thousands more are planned from a variety of companies and nations, although probably not all of these will be launched.On supporting science journalismIf you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.Satellites play a crucial part in connecting people, including bringing Internet to remote communities and emergency responders. But the rising number can be a problem for scientists because the satellites interfere with ground-based astronomical observations, by creating bright streaks on images and electromagnetic interference with radio telescopes. The satellite boom also poses other threats, including adding pollution to the atmosphere.When the first Starlinks launched, some astronomers warned of existential threats to their discipline. Now, researchers in astronomy and other fields are working with satellite companies to help quantify and mitigate the impacts on science — and society. “There is growing interest in collaborating and finding solutions together,” says Giuliana Rotola, a space-policy researcher at the Sant’Anna School of Advanced Studies in Pisa, Italy.Timing things rightThe first step to reduce satellite interference is knowing when and where a satellite will pass above an observatory. “The aim is to minimize the surprise,” says Mike Peel, an astronomer at Imperial College London.Before the launch of Starlinks, astronomers had no centralized reference for tracking satellites. Now, the International Astronomical Union (IAU) has a virtual Centre for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference (CPS), which serves as an information hub and to which researchers, including Peel and Rotola, volunteer their time.One of the centre’s tools, called SatChecker, draws on a public database of satellite orbits, fed by information from observers and companies that track objects in space. Astronomers can use SatChecker to confirm what satellite is passing overhead during their observations. The tool isn’t perfect; atmospheric drag and intentional manoeuvring can affect a satellite’s position, and the public database doesn’t always reflect the latest information. For instance, the BlueWalker 3 satellite from telecommunications firm AST SpaceMobile in Midland, Texas, launched in 2022 and was sometimes brighter than most stars; yet uncertainty of its position was so great at times that astronomers had difficulty predicting whether it would be in their field of view for their night-time observations.Starlink satellites leave streaks in a 2019 image taken by a 4-meter telescope at the Cerro Tololo Inter-American Observatory in Chile.Tools such as SatChecker help telescope operators to avoid problems by allowing them to target a different part of the sky when a satellite passes overhead or by simply pausing observations as it flies by. It would aid astronomers if SatChecker had even more accurate information about satellite positions, but there are constraints on improving the system. SatChecker data come from the US Space Force, which draws on a global network of sensors that tracks objects in orbit and issues updates on satellite locations as often as several times a day. The frequency of these updates is limited by factors such as how often a sensor can observe an object and whether the sensor can distinguish what it’s looking at.Currently, satellite streaks are a relatively minor issue for telescope operators. But the problem will grow as satellite numbers continue to increase drastically, meaning more observation time will be lost, and this issue will be magnified for Rubin.Fixing the streaksRubin, which cost US$810 million to build, is a unique case because it scans large swathes of the sky frequently — meaning it can detect rapidly changing phenomena such as incoming asteroids or cosmic explosions. Astronomers don’t want to be fooled by passing satellites, as happened in 2017 when researchers spotted what they thought was a γ-ray burst — high-energy flashes of light — from a distant galaxy but turned out to be sunlight reflecting off a piece of space junk.Rubin’s powerful camera, coupled with its 8.4-metre telescope, will take about 1,000 nightly exposures of the sky, each about 45 times the area of the full Moon. That’s more wide-field pictures of the sky than any optical observatory has ever taken. Simulations suggest that if satellite numbers in low Earth orbit rise to around 40,000 over the 10 years of Rubin’s survey — a not-impossible forecast — then at least 10% of its images, and the majority of those taken during twilight, will contain a satellite trail3.SpaceX took early steps to try to mitigate the problem. Working with Rubin astronomers, the company tested changes to the design and positions of Starlinks to try to keep their brightness beneath a target threshold. Amazon, the retail and technology giant based in Seattle, Washington, is also testing mitigations on prototype satellites for its planned Kuiper constellation. Such changes reduce, but don’t eliminate, the problem.To limit satellite interference, Rubin astronomers are creating observation schedules to help researchers avoid certain parts of the sky (for example, near the horizon) and at certain times (such as around twilight)4. For when they can’t avoid the satellites, Rubin researchers have incorporated steps into their data-processing pipeline to detect and remove satellite streaks. All these changes mean less time doing science and more time processing data, but they need to be done, astronomers say. “We are really looking forward to getting data from Rubin and seeing how it turns out,” Peel says.For other observatories, the IAU CPS is working on tools to help astronomers identify and correct satellite streaks in their data. One is a new database of crowdsourced observations of satellite brightnesses called SCORE, which is currently being beta tested and is planned for wider release in the coming months. This will help scientists to work backwards — they might see something puzzling in their past observations and be able to work it out, Peel says.The database “is definitely a very valuable tool” because it’s one of few that have data freely available, says Marco Langbroek, a space-tracking specialist at Delft University of Technology in the Netherlands. As a beta tester, Langbroek has added a number of entries to SCORE, including measurements of a NASA solar sail that changes in brightness as it tumbles through space. Going forwards, he says, SCORE will be most useful if a lot of astronomers contribute high-quality observations to the database, thereby building up a resource over time.Tuning things outAstronomers who work in the radio portion of the electromagnetic spectrum face extra challenges when it comes to satellites.Big radio telescopes are typically located in remote regions, to be as far as possible from mobile-phone masts and other technological infrastructure that leak radio emissions. But satellites can’t be avoided. “If signals are coming from the sky, they’re always there,” says Federico Di Vruno, an astronomer at the Square Kilometre Array Observatory in Jodrell Bank, UK, and co-director of the IAU CPS.When satellites transmit signals, the electromagnetic interference can overwhelm faint radio signals coming from the cosmos. One solution is to re-direct or temporarily turn off satellite transmissions. The US National Radio Astronomy Observatory and SpaceX have been working on ways to accomplish this, and the company now momentarily redirects or disables transmissions when Starlinks pass above sensitive telescopes including the Green Bank Telescope in West Virginia5. The method requires voluntary buy-in by all partners, plus a lot of data sharing and intensive programming by the companies and by the astronomers, but it does reduce interference. It has been successful enough that small group of radio astronomers visited China last month to discuss the strategy with satellite operators and scientists there.An image made from multiple exposures shows streaks from Starlink satellites, the International Space Station and other satellites over a site in Wales.But as soon as one solution is found, fresh challenges appear. One is the rise of ‘direct-to-cell’ satellites, which function like mobile-phone towers in space and can transmit to areas on the ground that otherwise don’t have coverage. Optical astronomers worry about these because they are physically large and therefore bright6, and they are a big problem for radio astronomers because direct-to-cell transmissions are extremely powerful. If one of those hits a radio observatory, “the telescope might be blind for a little bit”, Di Vruno says. So astronomers and satellite operators are discussing how they can share information about these as well, to avoid each other when a satellite passes over an observatory.Another emerging challenge is ‘unintended’ emissions — which happen when satellites ‘leak’ radiation in wavelengths far outside the bands typically used for transmissions and other tasks. Early tests for the Square Kilometre Array radio telescopes, which are under construction in Australia and South Africa, discovered such leakage coming from Starlinks and other satellites7.Many of these unintended emissions are at the low frequencies that are used in some studies including those of the early Universe. So far, astronomers haven’t come up with a good solution, other than scheduling telescopes to not record data when a satellite passes through the part of the sky being observed. In the future, it is possible that authorities such as the International Telecommunication Union might be able to issue regulations on this, as it already does for other shared uses of the electromagnetic spectrum.Cleaning up the atmosphereAstronomers aren’t the only researchers concerned about the impacts of satellite constellations. In the past few years, a growing number of atmospheric scientists have been warning that these fleets will pollute Earth’s upper atmosphere during launches and then when their orbits decline and they burn up. Researchers are just starting to get to grips with the scope of this pollution, says Connor Barker, an atmospheric chemist at University College London (UCL).The point of satellite constellations is to have lots of satellites in orbit, but refreshing them when new technology comes along means that the pace of launches and re-entries will accelerate. In February alone, an average of four Starlink satellites a day re-entered the atmosphere and burned up.Each re-entry adds chemicals to the upper atmosphere. In a 2023 study, researchers reported that measurements made during high-altitude aeroplane flights detected more than 20 chemical elements in Earth’s upper atmosphere that probably came from satellite re-entries, including aluminium, copper and lead8. Other work has found that satellite constellations contributed around 40% of many types of carbon emission from the space industry in 2022, including black carbon particles and carbon dioxide9 that could contribute to warming the atmosphere. It’s not yet clear how much this warms the planet or contributes to other environmental problems. Some early analyses suggest that satellite launches could contribute a small but measurable amount of ozone destruction.There are no regulations on satellite atmospheric pollution. Barker and his colleagues at UCL say a good first step towards a solution is to get better estimates of the scope of the problem. They have been building an emissions inventory for rocket launches and satellite re-entries, carefully tallying up the contaminants involved and estimating the altitudes at which they enter the atmosphere. “Even though this is currently a relatively small industry that’s having a relatively small impact on the atmosphere, we should still be aware of it,” says Eloise Marais, an atmospheric chemist at UCL.Researchers are trying to raise the profile of these and other concerns linked to satellite fleets. Some of these issues were discussed in February in Vienna, at a meeting of the United Nations Committee on the Peaceful Uses of Outer Space. It was the first time that the committee formally discussed the impacts of satellite constellations on astronomy.No major actions were taken, as expected for these early discussions. But “now all of the member states know of dark and quiet skies”, Di Vruno says. That in itself, he says, is a success.This article is reproduced with permission and was first published on March 18, 2025.

How Climate Change Could Devastate Banana Farming in Costa Rica

Climate change could slash the area suitable for banana production in Costa Rica by 60% by 2080, threatening one of the country’s key agricultural sectors, according to a study published in Nature Food. The report, which analyzed high-resolution satellite imagery, warns that rising temperatures across Latin America and the Caribbean could disrupt banana farming, with […] The post How Climate Change Could Devastate Banana Farming in Costa Rica appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

Climate change could slash the area suitable for banana production in Costa Rica by 60% by 2080, threatening one of the country’s key agricultural sectors, according to a study published in Nature Food. The report, which analyzed high-resolution satellite imagery, warns that rising temperatures across Latin America and the Caribbean could disrupt banana farming, with Costa Rica among the hardest hit due to its reliance on warm, low-lying regions. The study highlights that temperatures exceeding 30°C—projected to become more frequent—harm banana growth, reduce yields, and heighten risks of pests and diseases. “Intensive banana production thrives in warm, aseasonal regions with slightly acidic soils, but it’s less limited by rainfall due to irrigation,” researchers noted. “However, rising heat, combined with labor and export infrastructure demands, will shrink suitable land by 60% and lower yields in most current zones.” Costa Rica, a global leader in banana exports, faces a potential crisis as many existing plantations may become unsustainable. The banana industry accounts for thousands of jobs and millions in revenue, making adaptation urgent. “Without innovation and sustainability strategies, food security and the crop’s future are at risk,” said José Antonio Guzmán of the National Banana Corporation (CORBANA)’s Research Center. CORBANA is already taking steps to mitigate environmental impact. “We recycle 100% of production plastic, protect 14,500 hectares of forest near plantations, and are developing water-saving techniques and alternative methods,” said General Manager Marcial Chaverri. Yet the study suggests these measures may need to scale up significantly to counter the projected declines. Experts caution that the effects extend beyond Costa Rica. Banana-producing nations like Ecuador and Colombia face similar threats, though Costa Rica’s vulnerability stands out due to its climate and topography. The researchers urge regional cooperation and investment in heat-resistant varieties to avert a broader export collapse. Local farmers, however, remain unquoted in the study, leaving questions about on-the-ground impacts. Costa Rican officials have not yet commented on the findings or outlined a national response plan. The post How Climate Change Could Devastate Banana Farming in Costa Rica appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

Headlines for March 28, 2025

Major Earthquake Strikes Burma and Thailand, Collapsing Buildings as Rescuers Rush to Find Survivors, Israeli Attacks on Gaza Continue After It Broke Ceasefire, Killing More Students and Aid Workers, Israel Attacks Southern Lebanon, Beirut in Flagrant Breach of Ceasefire, Marco Rubio Says Rumeysa Ozturk Is One of “More Than 300” Visa Holders Targeted by Trump, U.S. Court in New Jersey Hearing Arguments in Mahmoud Khalil Case, U.S. and Colombia Agree to Share Biometric Data of Immigrants, Protesters in El Salvador Denounce Nayib Bukele’s Human Rights Abuses, Collaboration with Trump, Turkish Authorities Escalate Crackdown on Protesters and the Media Amid Political Crisis, U.S. Escalates Yemen Airstrikes, Bringing Total Deaths Since March 15 to at Least 57, U.S. Judge Orders Waltz, Vance, Rubio to Preserve Messages from Signal War Group Chat, HHS Cutting 10,000 More Jobs as DOGE Carries Out Mission to Gut the Government, “We Can Eliminate an Entire District Court”: Mike Johnson Escalates Attack on Courts That Defy Trump, Trump Withdraws Elise Stefanik Nom for U.N. Ambassador as GOP Frets Over Slim House Majority, New York County Clerk Refuses to Enforce Texas Penalty Against NY Abortion Provider, Trump EO Orders Gov’t Agencies to End Collective Bargaining with Federal Unions, EPA Created Email So Polluters Can More Easily Obtain Exemptions from Environmental Rules, Robert McChesney, Free Press Co-Founder and Staunch Defender of Media and Democracy, Has Died, New Trump EO Aims to Gut Smithsonian Institution

Major Earthquake Strikes Burma and Thailand, Collapsing Buildings as Rescuers Rush to Find SurvivorsIsraeli Attacks on Gaza Continue After It Broke Ceasefire, Killing More Students and Aid WorkersIsrael Attacks Southern Lebanon, Beirut in Flagrant Breach of CeasefireMarco Rubio Says Rumeysa Ozturk Is One of "More Than 300" Visa Holders Targeted by TrumpU.S. Court in New Jersey Hearing Arguments in Mahmoud Khalil CaseU.S. and Colombia Agree to Share Biometric Data of ImmigrantsProtesters in El Salvador Denounce Nayib Bukele's Human Rights Abuses, Collaboration with TrumpTurkish Authorities Escalate Crackdown on Protesters and the Media Amid Political CrisisU.S. Escalates Yemen Airstrikes, Bringing Total Deaths Since March 15 to at Least 57U.S. Judge Orders Waltz, Vance, Rubio to Preserve Messages from Signal War Group ChatHHS Cutting 10,000 More Jobs as DOGE Carries Out Mission to Gut the Government"We Can Eliminate an Entire District Court": Mike Johnson Escalates Attack on Courts That Defy TrumpTrump Withdraws Elise Stefanik Nom for U.N. Ambassador as GOP Frets Over Slim House MajorityNew York County Clerk Refuses to Enforce Texas Penalty Against NY Abortion ProviderTrump EO Orders Gov't Agencies to End Collective Bargaining with Federal UnionsEPA Created Email So Polluters Can More Easily Obtain Exemptions from Environmental RulesRobert McChesney, Free Press Co-Founder and Staunch Defender of Media and Democracy, Has DiedNew Trump EO Aims to Gut Smithsonian Institution

Why does Leonardo DiCaprio care so much about Australian wildlife?

The actor was an unlikely ally in this week’s fiery debate over an endangered fish – and is, an insider confirms, ‘very engaged’See all our Australian election 2025 coverageGet our breaking news email, free app or daily news podcastWhen a fiery parliament debate erupted this week about Tasmania’s salmon industry, support for the endangered fish at the centre of the fight – the Maugean skate – came from an unlikely corner.Hours before the Albanese government’s controversial legislation to protect fish farming in the state’s Macquarie Harbour passed on Wednesday, global star Leonardo DiCaprio weighed in.Sign up for Guardian Australia’s breaking news email Continue reading...

When a fiery parliament debate erupted this week about Tasmania’s salmon industry, support for the endangered fish at the centre of the fight – the Maugean skate – came from an unlikely corner.Hours before the Albanese government’s controversial legislation to protect fish farming in the state’s Macquarie Harbour passed on Wednesday, global star Leonardo DiCaprio weighed in.“URGENT: This week the Australian government will decide the fate of Macquarie Harbour and has an opportunity to shut down destructive industrial non-native salmon farms, protecting the Maugean Skate,” he wrote in a post to his 60.4m Instagram followers.The shallow estuary off Tasmania’s coast was one of the most important places in the world, DiCaprio said, and “essential for the planet’s overall health and the persistence of biodiversity”.The actor regularly uses his platform to post about conservation concerns in many places around the world – and it’s not the first time he has highlighted the plight of Australia’s threatened species.Earlier this month, he warned clearing in Western Australia’s jarrah forests for bauxite mining, approved by the federal government, would affect species including the endangered woylie and the red-tailed black cockatoo.He has repeatedly raised awareness of threats to koalas, and last year, called on the Australian government to end native forest logging to protect the breeding habitat of the critically endangered swift parrot in Tasmania.He also drew attention to Guardian Australia reporting on land clearing in Queensland, writing in a post: “Australia has the highest rate of mammalian extinctions in the world … The only way to protect the hundreds of threatened Australian forest species is to end native forest logging.”But how involved is the actor and conservationist in the decision to post on these topics to his personal profile?More than people might expect, according to scientist Janice Chanson, the Australasian manager of Re:wild, the conservation organisation co-founded by DiCaprio.“He does 100% have the say on whether the post goes up,” Chanson said. “He is very engaged and he is very informed.”Re:wild, which works on conservation projects around the world, was founded in 2021 when Global Wildlife Conservation, a scientist-led environment organisation based in the United States, merged with the Leonardo DiCaprio Foundation.DiCaprio sits on Re:wild’s board, whose membership includes Razan Al Mubarak, the current president of the International Union for Conservation of Nature (IUCN). According to Chanson, DiCaprio “speaks to our CEO on a daily basis” and has attended many field trips.Re:wild has staff based in Australia, where it partners with other conservation organisations to support the creation of protected areas, land restoration and species recovery.The organisation regularly creates social media posts on local issues, which a US-based communications team passes on to DiCaprio “to choose if he wants to engage on that particular topic”, Chanson said.She said Re:wild’s Australian work focuses on two goals: ending native forest logging and helping Australia meet its commitment to zero new extinctions.“The Maugean skate is very much at the forefront of the zero extinction target,” she said.“Australia has made that commitment. We’re here to help Australia meet that commitment. Unfortunately what’s happening to the Maugean skate is flying in the face of that.”skip past newsletter promotionSign up to Breaking News AustraliaGet the most important news as it breaksPrivacy Notice: Newsletters may contain info about charities, online ads, and content funded by outside parties. For more information see our Privacy Policy. We use Google reCaptcha to protect our website and the Google Privacy Policy and Terms of Service apply.after newsletter promotionBaby skates on verge of extinction in Tasmania hatched by scientists – videoFor months, Re:wild had been working to have the skate’s Macquarie Harbour habitat declared a key biodiversity area, a global program that supports identification and conservation of the world’s most important places for species habitats.It had posts prepared for a potential announcement. Then on 20 March, news broke that the Labor government planned to rush through legislation to protect salmon farming in the harbour, which threatens the skate’s survival, in the final week of parliament.Chanson said Re:wild decided to bring its posts forward, publishing an urgent message on its own Instagram account, and the communications team asked DiCaprio if he would share it on his own page.“The urgency came when we stressed it’s in parliament right now,” she said. She only realised he had acted on the request “15 minutes after he had posted”.The federal government has faced criticism during this term for delays to promised environmental law reforms that a statutory review five years ago found were necessary in response to the failure by successive governments to protect Australia’s unique wildlife and habitats.During debate over the Tasmanian legislation, Greens senator Sarah Hanson-Young waved a dead salmon in the Senate, accusing the government of selling out its environmental credentials for “rotten, stinking extinction salmon” on the cusp of an election.Wrapped in plastic: Sarah Hanson-Young waves a dead salmon in Senate – videoThe passing of the bill drew condemnation from environment groups and prompted dismay from the Labor Environment Action Network.As the federal election was formally called on Friday, former Greens leader Bob Brown said the environment had become “the sleeper election issue, awakened by this week’s uproar in parliament”.“By ramming through protection for the polluting Atlantic salmon companies in Tasmania, both [Anthony] Albanese and [Peter] Dutton have catapulted the environment back into the headlines,” he said.

A marine biologist discovered something incredible in a beer bottle on the seafloor

This story was produced in collaboration with The Dodo. One morning this week, Hanna Koch was snorkeling in the Florida Keys when she came across a brown beer bottle on the sea floor. Koch, a marine biologist for Florida’s Monroe County, picked up the bottle, planning to carry it with her and later toss it […]

This story was produced in collaboration with The Dodo. One morning this week, Hanna Koch was snorkeling in the Florida Keys when she came across a brown beer bottle on the sea floor. Koch, a marine biologist for Florida’s Monroe County, picked up the bottle, planning to carry it with her and later toss it out.  Through her dive mask, Koch peered inside to make sure it was empty.  That’s when she saw an eyeball.  “There was something staring back at me,” Koch told me.  It wasn’t just one eyeball, actually — but dozens. Inside the bottle was an octopus mom with a brood of babies. “You could see their eyes, you could see their tentacles,” Koch said in a recent interview with Vox and The Dodo. “They were fully formed.” Instead of taking the bottle with her and throwing it away like she initially intended, Koch handed it to her colleague, another marine biologist, who carefully placed it back on the sandy sea floor. Based on the images and video, Chelsea Bennice, a marine biologist at Florida Atlantic University, said the animal was likely a species of pygmy octopus — making this whole encounter even cuter.  On one hand, it’s hopeful to find life — an octopus family! — living in rubbish. “One man’s trash is another octopuse’s nursery,” as University of Miami environmental scientist Jennifer Jacquet told me when I showed her the photos. Her graduate student, Janelle Kaz, said it’s actually not uncommon for octopuses to take up residence in beer bottles. “They are highly curious and opportunistic,” Jacquet said.  But it’s also a reminder that, as Florida ecosystems decline, there are fewer and fewer places for wildlife to live. Overfishing, pollution, and climate change have devastated near-shore habitats in the Keys — and especially coral reefs — in the last few decades.  The irony, Koch told me, is that she runs a state-funded project in Monroe County to create “artificial reefs:” structures, often made of concrete, to enhance the habitat for fish, lobsters, and other sea creatures. And she was actually snorkeling that morning to figure out where to put some of the structures.  “This octopus found artificial habitat to make its home,” Koch said. “I was just like, ‘Wait momma, because I’m going to put out some better habitat for you — something that someone can’t pick up and throw away.’”

Urban Wildfire Smoke Sensors Miss Harmful Chemicals

As fires burned in Los Angeles this year, newer toxin monitors found contaminants that aren’t measured by standard methods. Now scientists and officials are pushing for better detection

When the catastrophic Los Angeles fires broke out in January of 2025, John Volckens suspected firefighters and residents were breathing toxic air from the burning homes, buildings, and cars, but it was unclear how much risk the public faced. So, the professor of environmental health at Colorado State University devised a plan to get answers.Volckens shipped 10 air pollution detectors to Los Angeles to measure the amounts of heavy metals, benzene, and other chemicals released by the flames, which burned more than 16,000 homes, businesses, and other structures, making it one of the country’s costliest natural disasters.“These disaster events keep happening. They release pollution into the environment and to the surrounding community,” said Volckens, who shared his results with local air regulators. “We have this kind of traumatic experience, and then we’re left with: Well, what did we just breathe in?”On supporting science journalismIf you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.Scientists and public health officials have long tracked the pollutants that cause smog, acid rain, and other environmental health hazards and shared them with the public through the local Air Quality Index. But the monitoring system misses hundreds of harmful chemicals released in urban fires, and the Los Angeles fires have led to a renewed push for state and federal regulators to do more as climate change drives up the frequency of these natural disasters.It’s questionable whether the Trump administration will act, however. Earlier this month, Environmental Protection Agency Administrator Lee Zeldin announced what he described as the “biggest deregulatory” action in history, which critics warn will lead to a rollback of environmental health regulations.While Air Quality Index values are a good starting place for knowing what’s in the air, they don’t provide a full picture of pollutants, especially during disasters, said Yifang Zhu, a professor of environmental health sciences at UCLA. In fact, the AQI could be in a healthy range, “but you could still be exposed to higher air toxins from the fires,” she added.Heavy smoke from the Eaton fire in Los Angeles.Josh EdelsonAFP via Getty ImagesIn February, nearly a dozen lawmakers from California called on the EPA to create a task force of local and federal authorities to better monitor what’s in the air and inform the public. Locals are “unsure of the actual risks they face and confused by conflicting reports about how safe it is to breathe the air outside, which may lead to families not taking adequate protective measures,” the lawmakers wrote in a letter to James Payne, who was then the acting EPA administrator. The EPA press office declined to comment in an e-mail to KFF Health News.Lawmakers have also introduced bills in Congress and in the California legislature to address the gap. A measure by U.S. Rep. Mike Thompson (D-Calif.) and U.S. Sen. Jeff Merkley (D-Ore.) would direct the EPA to allocate grant money to local air pollution agencies to communicate the risks of wildfire smoke, including deploying air monitors. Meanwhile, a bill by Democratic state Assembly member Lisa Calderon would create a “Wildfire Smoke Research and Education Fund” to study the health impacts of wildfire smoke, especially on firefighters and residents affected by fires.The South Coast Air Quality Management District, a regional air pollution control agency, operates about 35 air monitoring stations across nearly 11,000 square miles of the Los Angeles region to measure pollutants like ozone and carbon monoxide.During the fires, the agency, which is responsible for the air quality of 16.8 million residents, relied on its network of stations to monitor five common pollutants, including PM2.5, the fine particles that make up smoke and can travel deep inside the body. After the fires, the South Coast AQMD deployed two mobile monitoring vans to assess air quality in cleanup areas and expanded neighborhood-level monitoring during debris removal, said Jason Low, head of the agency’s monitoring and analysis division.Local officials also received the data collected by Volcken’s devices, which arrived on-site four days after the fires broke out. The monitors — about the size of a television remote control and housed in a plastic cover the size of a bread loaf — were placed at air monitoring stations around the fires’ perimeters, as well as at other sites, including in West Los Angeles and Santa Clarita. The devices, called AirPens, monitored dozens of air contaminants in real time and collected precise chemical measurements of smoke composition.Researchers replaced the sensors every week, sending the filters to a lab that analyzed them for measurements of volatile organic compounds like benzene, lead, and black carbon, along with other carcinogens. Volcken’s devices provided public health officials with data for a month as cleanup started. The hope is that the information provided can help guide future health policies in fire-prone areas.“There’s not one device that can measure everything in real time,” Low said. “So, we have to rely on different tools for each different type of purpose of monitoring.”ASCENT, a national monitoring network funded by the National Science Foundation, registered big changes after the fires. One monitor, about 11 miles south of the Eaton fire in the foothills of the San Gabriel Mountains, detected 40 times the normal amount of chlorine in the air and 110 times the typical amount of lead in the days following the fires. It was clear the chemical spikes came from urban wildfire smoke, which is more dangerous than what would be emitted when trees and bushes burn in rural areas, said Richard Flagan, the co-principal investigator at the network’s site in Los Angeles.“Ultimately, the purpose is to get the data out there in real time, both for the public to see but also for people who are doing other aspects of research,” said Flagan, adding that chemical measurements are critical for epidemiologists who are developing health statistics or doing long-term studies of the impact of air pollution on peoples’ health.Small, low-cost sensors could fill in gaps as government networks age or fail to adequately capture the full picture of what’s in the air. Such sensors can identify pollution hot spots and improve wildfire smoke warnings, according to a March 2024 U.S. Government Accountability Office report.Although the devices have become smaller and more accurate in the past decade, some pollutants require analysis with X-ray scans and other costly high-level equipment, said J. Alfredo Gómez, director of the Natural Resources and Environment team at the GAO. And Gómez cautioned that the quality of the data can vary depending on what the devices monitor.“Low-cost sensors do a good job of measuring PM2.5 but not such a good job for some of these other air toxins, where they still need to do more work,” Gómez said.UCLA’s Zhu said the emerging technology of portable pollution monitors means residents — not just government and scientists — might be able to install equipment in their backyards and broaden the picture of what’s happening in the air at the most local level.“If the fires are predicted to be worse in the future, it might be a worthwhile investment to have some ability to capture specific types of pollutants that are not routinely measured by government stations,” Zhu said.KFF Health News, formerly known as Kaiser Health News (KHN), is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF — the independent source for health policy research, polling, and journalism.

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