Revved-up climate change now permeates Americans' daily lives with harm that is "already far-reaching and worsening across every region of the United States," a massive new government report says. The ...

A pioneering climate scientist is challenging a U.S. government report that cited his research while reaching what he says is the exact opposite conclusion. Benjamin Santer and his colleagues say ...

The Indian and Pacific oceans have been climatically linked for centuries, but scientists say that connection is now breaking down in an exceptional way. Ancient climate records suggest volcanoes ...