"As global temperatures rise, river valleys in South Asia will face the highest risk of heat waves that reach the limits of human survivability, a new study shows."

"An underwater robot has captured what is believed to be the first images of melted nuclear fuel deposits inside Japan's stricken Fukushima nuclear plant, its operator Tepco says."

"India's holy Ganges begins as a crystal clear river high in the icy Himalayas but pollution and excessive usage transforms it into toxic sludge on its journey through burgeoning cities, industrial hubs and past millions of devotees."

"BEIJING -- California said it would cooperate with China on clean technology, emissions trading and other 'climate-positive' efforts in a bid to fill a gap left after U.S. President Donald Trump pulled out of the Paris climate accord last week."

"California said it will cooperate with China on clean technology, emissions trading and other 'climate-positive' opportunities as it bids to fill the gap left after President Donald Trump pulled the United States out of the Paris climate accord last week."

"China’s devastating pollution problems began here, in coal country, where legions of workers toiled and often died to exhume the rich deposits that fueled the country’s sooty rise to economic power. Today, these muddy plains are home to a potent symbol of China’s new ambition: to bypass the United States and cement its dominant role in clean energy."

"GUANGZHOU, China — The rains brought torrents, pouring into basements and malls, the water swiftly rising a foot and a half."