Climate Crisis

Climate Ready

Last year was the hottest year on record, the top 10 hottest years were all in the past decade and planet-heating carbon dioxide in the atmosphere is at its highest levels in the last 800,000 years, a report Wednesday said

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

Vehicle development could get expensive for automakers.

You might be wishing for warmer temperatures, but when spring comes early, it's also a signal that human-amplified climate change is affecting the season.

Ocean water expands as it warms, researchers said.

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.

The head of the Environmental Protection Agency has announced a series of actions to roll back landmark environmental regulations, including rules on pollution from coal-fired power plants, climate change and electric vehicles

Space junk is a "persistent hazard," scientists say.

The Supreme Court has rejected a lawsuit from Republican attorneys general in 19 states aimed at blocking climate change suits against the oil and gas industry from Democratic-led states

Two-thirds of studied species declined by more than 10%, the study said.

Experts say sightings have been steadily falling in the last 20 years, sparking fears that one-quarter of all butterflies have been wiped out.

Snowpack in traditional dogsledding regions has been lacking in recent years.

Extreme heat is taking a silent toll at the cellular and the molecular level.

ABC News chief meteorologist Ginger Zee examines claims made in Al Gore’s documentary, “An Inconvenient Truth,” almost 20 years after its release.

The Earth is seeing longer, hotter summers and shorter, milder winters due to climate change, experts say.

ABC News chief meteorologist Ginger Zee breaks down the impact of private jets on the environment, and possible solutions to this problem.

The average surface air temperature was 55.81 degrees Fahrenheit.

The Palos Verdes Peninsula is known for its frequent landslides.

Web managers were told to identify, archive or unpublish materials mentioning climate change by "no later than close of business this Friday," according to internal emails obtained by ABC News.

The directive follows President Trump's orders reversing climate policies.

The magnitude of a temperature increase since mid-2023 is puzzling scientists.

Polar bears are struggling to survive as sea ice dwindles.

The clock is set to 89 seconds to "midnight" as scientists and security experts say humanity is close to facing a global catastrophe with no advancement on nuclear risks and climate change.

The impact of human-amplified climate change on popular winter sports.

ABC News chief meteorologist Ginger Zee looks at how a decades long international effort to heal the ozone layer could be applied elsewhere.

Gina McCarthy, former White House climate adviser under the Biden administration, talks about the president’s plans to tackle energy and climate issues.

ABC News chief meteorologist Ginger Zee explains the science that determines how much climate change factors into natural disasters.

Trump's priorities are a radical departure from Biden's environmental approach.

Can big tech maintain climate commitments and their bottom lines under Trump?

Conditions made for a perfect storm of flames.

Powerful Santa Ana winds fueled the rapid spread of the blazes.

The wildfires were worsened by a perfect storm of conditions, experts said.

In 2024, the level of greenhouse gases in the atmosphere reached the highest annual levels ever recorded on the planet, according to the Copernicus Climate Change Service.

A plan to phase out gas-powered vehicle sales was approved in 2022.

The sun may influence Earth's climate, but it is not causing climate change.

Emissions associated with international and private travel are skyrocketing.

ABC News chief meteorologist Ginger Zee explains why the sun isn’t to blame for what could be the warmest year recorded on Earth.

Global warming is impacting the Florida scrub-jay, a one-of-a-kind bird species, in a way that is surprising to ornithologists.

Warmer winters are leading to increased reproductive effort but lower success.

Converting the power of water into energy is nothing new. Using ocean waves is.

Jonathan McNamara, the communications director of the American Red Cross discusses "Giving Tuesday," a movement to celebrate generosity and donations during the holiday season.

The Lone Star State has the potential to be a significant hydrogen supplier.

Drinking water is not yet impacted, but officials are taking urgent measures.

Climate and weather are two terms that go hand in hand but often get conflated.

Climate and weather are two terms that go hand in hand but often get conflated. ABC News chief meteorologist Ginger Zee breaks it down.

Simple swaps could lead to huge decreases in greenhouse gas emissions.

The new deal, known as “climate cash,” calls for wealthy countries to contribute $300 billion annually to help developing nations deal with the effects of climate change.

A look at the numbers behind the United Nations’ annual Climate Change Conference, known as COP29, and what nations, rich and poor, must accomplish to keep global temperatures from rising.

A bomb cyclone is pummeling the Pacific Northwest.

A vast majority of hurricanes between 2019 and 2023 measured stronger winds.