Add Yahoo as a preferred source to see more of our stories on Google. A worker moves irrigation tubes on a farm in Pinal County, Ariz. A two-decade drought has made water supplies harder to secure.

The world is warming. This fact is most often discussed for Earth's surface, where we live. But the climate is also changing from the top of the atmosphere to the bottom of the ocean. And there is a ...

A new CU Boulder-led study has revealed that recent changes in North Pacific Ocean temperatures—long believed to be the result of natural variability—are in fact being driven by human-generated ...

This figure shows the proportion of Big Ten university scientists, sorted by academic discipline, who said they believe average global temperatures have risen from pre-1800s levels (left) and that ...

We all know that humans are helping drive climate change. No, we aren't the only cause of the increasing global temperatures, but there's no question that we have had a serious impact over the years.

A global study by the University of Basel, Switzerland, reveals a surprising picture: While 42% of treelines worldwide are ...

Dramatic droughts linked to the decline of the Classic Maya civilization approximately 800 to 1000 CE may not have required ...

We issues alerts in many instances when the Climate Shift Index identifies a notable extreme weather event around the world that was made more likely by human-caused climate change. Climate Matters is ...

The agency revamped its webpages to feature natural causes of rising temperatures such as the Earth’s orbit. EPA has scrubbed references to people’s contribution to rising temperatures from some of ...