"If you only focused on the United States, you might think coal's days were numbered."

"Mining in the deep sea for minerals is uncharted territory, but one company is well on its way to making it a reality. Now, the company is trying to convince skeptical audiences it's a good idea."

"New analyses are giving mixed grades to the most recent greenhouse gas emissions targets submitted to the United Nations, with particularly low marks for the pledge from South Korea."

Greenland's massive ice sheet is melting faster this summer as the dome of hot air breaking records in Europe also threatens to hasten climate-related sea-level rise.

"Twenty local governments, representing areas producing 5 percent of global climate-changing emissions, have committed to targets to cut those emissions, with the majority also setting goals for renewable energy, a platform uniting them said on Thursday."

"One of the much-heralded solutions to climate change which its supporters believe could enable the world to continue to burn fossil fuels looks likely to be a failure."

"A Swiss man attempting to circumnavigate the globe with an aircraft powered only by the sun's energy landed in Hawaii on Friday, after a record-breaking five-day nonstop solo flight across the Pacific Ocean from Japan."

"Seafood lovers are set to see less shellfish, salmon and other fish on their dinner plates as climate change warms the oceans and makes them more acidic."

"Toilets are taken for granted in the industrialized West, but still are a luxury for a third of the world's people who have no access to them, according to a report by the World Health Organization and UNICEF."

"Five months before a United Nations summit meeting aimed at forging a historic global accord to cut climate-warming emissions, significant signs of progress toward an agreement are emerging."