"The world's oceans are under greater threat than previously believed from a "deadly trio" of global warming, declining oxygen levels and acidification, an international study said on Thursday."

"Newly formed Tropical Storm Karen, which could reach hurricane strength by Friday, is expected to make landfall on the U.S. Gulf Coast sometime over the weekend."

"Swarms of giant hornets have killed 42 people and injured 1,640 in China's northwestern province of Shaanxi in recent weeks, the official Xinhua news agency said on Thursday."

"WASHINGTON — Elijah Zarlin was handcuffed outside the White House two years ago for joining in weeks of protests against the Keystone XL pipeline. His arrest would have been an ordinary rite of Washington, except for one thing: Mr. Zarlin had been an aide at the headquarters of Barack Obama’s first presidential campaign."

"China, India and the U.S. joined others nations in approving a road map for building the first global market to reduce emissions from the $708 billion airlines industry."

"The U.S. Environmental Protection Agency could resume rulemaking for the disposal of toxic coal ash after a federal judge ruled against the agency in a lawsuit brought by environmental groups."

"Walk through a health food store and you'll find amaranth, sorghum, quinoa — heritage grains that have been staples around the world for generations. Americans are just discovering them. There's another age-old grain that grows right here on the Great Plains: millet."

"California scientists are reporting a pair of victories in the epic struggle between man and mosquito. A team at the University of California, Riverside, appears to have finally figured out how bugs detect the insect repellent known as DEET. And the team used its discovery to identify several chemical compounds that promise to be safer and cheaper than DEET, according to the report in the journal Nature."