At just 18 years old, Holden Bierman is cleaning up the ocean -- one swimsuit at a time.

A move to use "green" firecrackers during Diwali appeared not to have made a difference for pollution in India's capital.

Artificial intelligence has caused concern for its tremendous consumption of water and power

Researchers have quantified how meat consumption in the U.S. is contributing to the greenhouse gas emissions responsible for climate change.

One of the most potent greenhouse gas emissions has been discovered seeping out of cracks of the Antarctic sea floor, researchers have found.

ABC News’ Maggie Rulli puts a spotlight on new technology that turns garbage into sustainable products.

President Donald Trump spent a considerable amount of his address to the United Nations General Assembly on Tuesday disparaging renewable energy sources.

The composition of fish populations in streams and rivers across the U.S. have been severely altered as a result of changing water temperatures and introductions of fish.

As millions of leaf peepers prepare for the arrival of changing leaves across the U.S., this year's weather will impact the peak of fall foliage for some regions.

ABC News chief meteorologist Ginger Zee reports on the main drivers for the alarming decline of the insect population.

Machinery is tearing through what locals are calling “wet wipe island,” an 820-foot shoreline of flushed bathroom debris that is an an environmental nightmare in London.

Scientists have pitched a plan to use nuclear waste to help produce fuel for nuclear fusion.

Another dazzling display of northern lights could be visible tonight with the prediction of a minor geomagnetic storm, according to space weather experts.

The Environmental Protection Agency's decision to cancel a Biden-era solar grant program will hinder efforts to lower energy bills for middle to low-income households.

Air quality alerts are in place for portions of 10 states from Minnesota to Delaware as officials warn the smoke may become dangerous for sensitive groups.

ABC News' Linsey Davis discusses the environmental agency's latest move with former senior advisor to the Biden administration's EPA, Zealan Hoover.

ABC News’ Linsey Davis is joined by EPA administrator Lee Zeldin to discuss why the agency revoked a scientific finding that would regulate greenhouse gas emissions and fight climate change.

At Skaneateles Lake in New York, Rachael DeWitt made her lifelong dream a reality after finishing a nine hour marathon swim of the lake to help the preservation of America’s lakes and oceans.

"GMA" heads to Chicago's Shedd Aquarium and takes a scenic paddle down the Chicago River as part of its new "Kayak for Conservation" initiative.

Crews in Washington state are working to contain a fuel spill in the environmentally sensitive Olympic Peninsula. The fuel seeped into a tributary of a river recently restored for salmon runs.

More geological changes are occurring at Yellowstone National Park, as another hole forms in one of the park's basins.

Harmful algae blooms have been rapidly producing in a place previously too cold to host the toxin: the Arctic.

The Center for Biological Diversity’s Elise Bennett discusses the environmental impact of the migrant detention center in Florida’s Everglades.

The Trump administration's move to end protections for 58 million acres of national forests will open up the federal lands to destruction, environmental advocates say.

ABC News Chief Meteorologist Ginger Zee explains the impact that renewable forms of energy are having on the environment.

The destruction of uranium enrichment sites that support Iran's nuclear program would not likely have severe environmental consequences.

A ban on watering lawns has been issued in the Des Moines metro area for the first time to avoid a potential water crisis due to high concentrations of nitrates.

A ban on watering lawns has been issued in the Des Moines metro area for the first time to avoid a potential water crisis due to high concentrations of nitrates.

Levels of the toxin microcystin has been detected in Lake Erie weeks earlier than usual, according to the National Oceanic and Atmospheric Administration.

The amount of mercury being transported through rivers all over the world has risen up to three-fold since the Industrial Revolution.

An invasive species of stinging ant is spreading across the U.S., having been detected in at least 20 states. Their stings can lead to anaphylaxis.

Sargassum could soon be rotting and stinking up Florida beaches.

Millions of tons of seaweed currently floating in the tropical Atlantic Ocean could soon make its way toward the U.S., according to researchers following the phenomenon.

President Donald Trump's nominee to oversee the U.S. Forest Service has a history of clashing with the very agency that he could soon be leading.

A rare Northern Lights display could be visible across the northern United States on Monday. See where and when to watch the aurora borealis, plus viewing tips from NOAA.

Experts say up to 60 million gallons of toxic waste are flowing from the Tijuana River in Mexico into the Pacific Ocean each day.

The Supreme Court put new limits on the scope of federally mandated environmental impact statements, clearing the way for a proposed rail line linking Utah and Colorado.

Nonprofit organization Heroic Gardens uses horticulture as a form of personal healing for U.S. veterans.

What to know about Empire Wind, the offshore wind project the Trump administration is allowing to move forward.

A conventional landscaping technique is not the best option for the environment, but sustainable landscaping is a way to design a yard that is easy on the eyes and the planet.

Some of the policies enacted under the Trump administration will have lasting impacts on the environment far after the current president leaves office, experts say.

A California federal court struck down an attempt from the U.S. Fish and Wildlife Service to revoke protections for the Joshua Tree under the Endangered Species Act.

ABC News chief meteorologist Ginger Zee talks to scientists about carbon dioxide, the gas critical for life on Earth.

ABC News chief meteorologist Ginger Zee heads to New Jersey where one lawmaker wants to repeal the ban on single-use plastic bags.

Environmental Protector Agency Administrator Lee Zeldin announced a significant reorganization for the agency.

President Donald Trump has enacted a sweeping number of policies that could harm the environment and hamper goals for greenhouse gas reductions, some experts say.

The European Space Agency has put its Biomass satellite into orbit.

A carbon removal company has been collecting rock dust to capture carbon and make farming more efficient.

ABC News’ Ginger Zee reports from North Carolina on how farmers are using rock dust to enrich soil and help remove carbon from the atmosphere.

ABC News chief meteorologist Ginger Zee tackles one of the most common myths she hears about climate change.