"California lawmakers voted to extend the state's climate change fighting efforts out to 2030 on Wednesday, giving a new lease on life to the most ambitious greenhouse gas reduction program in the country."

"A drop in the food supply this summer, possibly tied to warmer Gulf of Maine waters, leads to the worst survival rate ever tracked on Machias Seal Island."

"Outside her apartment, at the height of a midsummer heat wave in Harlem, Caroline Gwynn shared her tips for staying cool without air conditioning."

"Investors managing more than $13 trillion of assets urged leaders of the Group of 20 on Wednesday to ratify a global climate deal by the end of 2016 and to step up efforts to shift from fossil fuels."

"For the 1,000 passengers aboard the Crystal Serenity cruise ship, climate change has brought a luxurious opportunity: to sail into the history books on the largest passenger vessel to traverse the once unnavigable Northwest Passage."

"For some time, scientists who focus on Antarctica have been watching the progression of a large crack in one of the world’s great ice shelves — Larsen C, the most northern major ice shelf of the Antarctic peninsula and the fourth largest Antarctic ice shelf overall."

"The Green Party presidential candidate has described the flooding in the US state of Louisiana as 'a crisis of climate change'."

"President Barack Obama is making his first visit to flood-ravaged southern Louisiana as he attempts to assure the many thousands who have suffered damage to their homes, schools and businesses that his administration has made their recovery a priority."

"Sea ice melting since 1979 is 'enormously outside the bounds of natural variability' and clearly linked to humans burning fossil fuels, research shows."