Although drought conditions have improved in many regions of the United States, higher than average summer temperatures and patchy rainfall over the summer has contributed to one of the worst wildf

Novel technology used in a National Geographic investigation into illegal poaching of elephants' tusks has found that the criminals seeking the valuable ivory aren't just jewelry traders.

FAIRBANKS, Alaska – One of the state’s worst wildfire seasons in history has scorched 5 million acres of tundra and forests across Alaska, and experts here fear climate change will cause even more

Both are phenomena associated with warm water in the Pacific that can separately impact weather.

RIO DE JANEIRO -- The Rodrigo de Freitas lagoon, with its glistening waters, is one of this tropical city's most picturesque spots. Just don't look too closely at those waters.

An unusual cluster of thunderstorms around Chicago killed one person and injured several others Sunday afternoon.

Bandar Mahshahr, Iran, soared to a staggering heat index of 163 degrees Friday afternoon as a heat wave continued to bake the Middle East, already one of the hottest places on earth.

EL PINO, Honduras — The jaguar roams jungles and riverbanks from the Amazon to Mexico, and even into the southwestern United States.

Wildfires have burned a phenomenal 5.5 million acres across the U.S. so far this year, an area equal to the size of New Jersey.

A higher percentage of children live in poverty now than did during the Great Recession, according to a new report from the Annie E. Casey Foundation released Tuesday.