As records tumble across the western U.S., meteorologists say an Arizona community set an all-time March record this week.

Scientists say a record-smashing March heat wave in the U.S. Southwest shows climate change is already driving more dangerous ...

President Donald Trump’s nominee to lead the Bureau of Land Management has assured senators that – despite his long-held ...

A spike in temperatures highlights the felt reality and scientific certainty of climate change. So why is this still such a ...

Something quietly seismic is happening to the American map. People from Florida, California, and Arizona are packing up, ...