The global weather disrupter appears to be taking a toll, and its peak could still be months away.

A U.S. oil company says it could be on the verge of a major discovery in Greenland. The proposal comes at a tricky time for the Arctic island, and locals are lining up against it.

With forecasters issuing a warning for very high temperatures, this summer is on track to be one of the hottest yet.

Our reporter, Apoorva Mandavilli, goes inside a mosquito factory in Brazil, where scientists are producing millions of mosquitoes to fight deadly tropical diseases in a warming world.

The city of Belém in northern Brazil was overwhelmed by an outbreak of dengue two years ago. An all-out municipal effort has reduced cases and may offer lessons to American cities.