Decades of independent observations and improved methods strengthen the evidence that greenhouse gases are changing Earth’s ...

Here’s what we know about the record-setting El Niño on a record-hot planet, and the most important questions scientists are trying to answer. The tropical Pacific has seen heat build for months as a ...

As climate change makes extreme weather more frequent and intense, floods, heat waves, droughts, wildfires and storms are increasingly disrupting roads, railways, airports and waterways. Roads have ...

The possibility of snow in Tampa, Fla. Record heat and fires in Australia. Scientists say climate change is exacerbating weather extremes. By David Gelles On a typical winter day, the Arctic air that ...

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When Punxsutawney Phil popped up and saw his shadow on Feb. 2, a collective groan rippled across the Eastern United States, where freezing temperatures, ice and snow have cast a big chill for days.

Climate change doesn’t only alter the ways people live, work, and eat. It can also force them to leave their homes behind. Climate change’s consequences are worse in many less-developed countries with ...

Leading up to the November election, many Wisconsin residents and scientists say candidates should be addressing an issue ...