Calgary researchers discovered in the Northwest Territories what they believe is some of the most acidic natural water in the world. It's because of how climate change is impacting the Smoking Hills Formation.

EPA administrator Lee Zeldin called climate change a "con job" meant to divert taxpayer funds to pay for the training of more environmental activists.

Judge Mark Davis didn't say whether Carrboro proved its argument that Duke Energy deceived the public for decades about the dangers of greenhouse gases.

EPA Administrator Lee Zeldin officially revoked the endangerment finding, in a huge blow to U.S. efforts to fight climate change.

The Trump administration has revoked a scientific finding that climate change is a danger to public health, an idea that President Donald Trump called “a scam.”

The Environmental Protection Agency is rescinding the legal finding about climate change that it has long relied on to regulate greenhouse gas emissions.

Key climate tipping points may be closer than expected, raising the risk of accelerating warming, sea-level rise, and long-term impacts.

The animals chosen as Olympic mascots are stoats — creatures that are at risk because of climate change. Learn more about the color-changing critters.