"July was the hottest the world's oceans have been in almost 130 years of record-keeping. ... Meteorologists said there's a combination of forces at work this year: A natural El Nino system just getting started on top of worsening man-made global warming, and a dash of random weather variations. The resulting ocean heat is already harming threatened coral reefs. It could also hasten the melting of Arctic sea ice and help hurricanes strengthen."

"Scientists have identified a new source of chemical pollution released by the huge amounts of plastic rubbish found floating in the oceans of the world. A study has found that as plastics break down in the sea they release potentially toxic substances not found in nature and which could affect the growth and development of marine organisms."

"Since the mid-1990s, hurricanes and tropical storms have struck the Atlantic Ocean with unusual frequency -- or have they? Two new studies suggest that the situation may not be so clear."

"The latest round of preparatory talks for the U.N. climate conference concluded today with negotiators lamenting that the languid pace of talks could mean there won't be a deal on emissions in Copenhagen this December."

Montreal's successful bike-sharing program will be copied in Boston and London.

"Millions of sockeye salmon have disappeared mysteriously from a river on Canada's Pacific Coast that was once known as the world's most fertile spawning ground for sockeye."

"The North Atlantic Ocean has spawned more hurricanes and tropical storms over the last decade than it has since a similarly stormy period 1,000 years ago, according to a new study."

Fiji water is in fashion. Alleged to be pure. And a brutal military dictatorship threatens prison and rape for any journalist who may suggest otherwise.

"GUADALAJARA - The United States, Canada and Mexico said Monday they would put in place infrastructure to cooperate on greenhouse gas emissions trading as part of efforts to fight climate change."

"Two of China and the United States' largest electric utilities signed a memorandum of understanding in Beijing today to share information and explore potential initiatives to produce cleaner power from coal and renewable resources such as wind."