International

"An airplane powered by energy from the sun arrived on Wednesday in Egypt, the penultimate stop on the first fuel-free flight around the globe."

"Researchers are finding that kelp, eelgrass, and other vegetation can effectively absorb CO2 and reduce acidity in the ocean. Growing these plants in local waters, scientists say, could help mitigate the damaging impacts of acidification on marine life."

"Former U.N. climate chief Christiana Figueres isn't the only contender for secretary-general who has already made climate change a central theme of her vision for the United Nations' future."

"We didn’t know enough about clouds until now. What a new study reveals is bad news."

"If elected president, Donald Trump would be the only head of state in the world to contend that climate change is a hoax, according to a study."

"The latest draft version of the TTIP agreement could sabotage European efforts to save energy and switch to clean power, according to MEPs."

"An experimental solar-powered airplane has left Spain for Egypt in the penultimate leg of its globe-circling voyage."

"Last month was the hottest June on record for the Lower 48. If this kind of headline is starting to feel like a record on repeat, you’re correct — it’s the second June in a row that’s become the warmest on record for the U.S., although that fact is dwarfed by the string of globally hot months we’ve experienced over the past year."

"Insect populations are declining dramatically in many parts of the world, recent studies show. Researchers say various factors, from monoculture farming to habitat loss, are to blame for the plight of insects, which are essential to agriculture and ecosystems."

"The summer sea ice cover over the Arctic raced towards oblivion in June, crashing through previous records to reach a new all-time low."