Environment

The Solar Impulse 2 plane is being flown across the Atlantic Ocean on a four-day trip to Spain. The solar-powered craft took off from New York's John F. Kennedy International Airport early Monday.

Temperatures in Phoenix are forecast to go as high as 120 degrees. A massive high-pressure system has prompted excessive-heat warnings for parts of five states in the Southwest and the Plains.

Around the world, warm oceans and human interference are still causing massive reef "bleaching." A newly released study looks at what's different about these healthier-than-expected reefs.

The 568-foot-long Arktika is powered by two nuclear reactors and capable of breaking through ice 13 feet deep. Russia's interest in the Arctic is rising along with global temperatures.

The U.S. is halfway through its 2-year chairmanship of the Arctic Council. It's a high-level forum for 8 nations with Arctic territory, and one of the few areas where the U.S. and Russia cooperate.

Betty Barkha is from Fiji, where rising sea levels and record cyclones are rattling the populace.

A few months ago, health officials published a map that made it look like a big part of the U.S. was at high risk for Zika. Now they've released a new map that paints a very different picture.

A new study reveals the full extent of globalization in our food supply. More than two-thirds of the crops that underpin national diets originally came from somewhere else — often far away.