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.

Top Trump administration officials on Tuesday headlined an energy conference led by the state’s Republican governor

Growing season in many neighborhoods brings an onslaught of lawnmowers, leaf blowers and other power tools

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.

Researchers said they discovered a "biological treasure chest" of corals located in an underwater lagoon off a remote South Pacific island.

"GMA" explores how people are creating more sustainable living spaces as part of “Our Home,” an Earth Week campaign to highlight efforts to protect, restore and celebrate our planet.

President Donald Trump's quest to conduct a resurgence of coal production and utilization in the U.S. is farfetched and unlikely, according to energy experts.

President Donald Trump has called for the expansion of U.S. coal production, claiming that an increase of "clean" coal produced in the U.S. will soon take place.

Biotech company Colossal Biosciences said it has brought back the dire wolf, an animal that went extinct 10,000 years ago, through its de-extinction process.

Researchers have successfully revived algae that remained dormant underneath sediment at the bottom of the Baltic Sea for more than 7,000 years.

Those wanting to recreate in the deepest lake in the U.S. will need to schedule a visit soon, before access closes for two years.

An iceberg the size of Chicago broke off am Antarctic ice shelf to reveal a thriving ecosystem underneath, according to researchers.

Washington State University entomologists announced this week that commercial honey bee colony losses are projected to reach between 60% and 70% in 2025.

Sea lions on the California coast are displaying strange behavior likely due to a harmful algae bloom impacting the region, according to marine researchers.

Several of the environmental benefits Americans experience today -- clean air, clean water, clean rain -- could soon be in jeopardy from EPA deregulation efforts.

Experts say coal may be "cleaner than ever," but it's still not "clean" energy.

ABC News’ Stephanie Ramos talks to former EPA Administrator Gina McCarthy on the Trump administration’s rollback of clean air and water protections.

Staffers have been told they are prohibited from communicating with grantee partners they are supposed to monitor, according to multiple sources inside the agency. ABC News’ MaryAlice Parks reports.

EPA staffers have been told they are prohibited from communicating with grantee partners they are supposed to monitor, according to multiple sources inside the agency.

A new study finds that your environment can have a greater impact on your health over your genes. ABC News medical correspondent Dr. Darien Sutton discusses.

President-elect Donald Trump's nominee to head up the Environmental Protection Agency, Lee Zeldin, emphasized accountability during hours of testimony Thursday.

Vast forests, desert land and even a volcano are among the landscapes included in what's now the largest corridor of federally protected land in the U.S.

After the holidays, it’s important to think about the best way to dispose of organic decorations, including Christmas trees and wreaths.

Estimates suggest that millions of abandoned gas and oil wells may pose a threat to communities across the country, an ABC News investigation finds. 

More than 3.5 million abandoned oil and gas wells are littered across the United States and an estimated 14 million Americans live within a mile of one of the wells.

California has been given the green light by the U.S. Environmental Protection Agency (EPA) to ban the sale of new gas-powered cars and light trucks by 2035.

Modern society has a big problem when it comes to plastic -- and it's contributing heavily to pollution and climate change.

Single use items often come with plastic and paper that will eventually be thrown away and sent to a landfill.

The power of the ocean could soon be used to power homes in the U.S. as scientists prepare to test an untapped form of renewable energy.

Texas has the potential to become a major producer of green hydrogen due to its existing energy infrastructure, according to a new study.

More than 17 million people get their drinking water from the Delaware River basin, according to environmental nonprofit American Rivers.

Important bodies of water that supply water to populated regions in the Northeast are drying up due to drought conditions in recent months.

President-elect Donald Trump's second term could bring reform to energy permitting and increased fracking on federal lands.