Thursday, November 25, 2010

Cancun's vanishing mangroves hold climate promise

Patrick Rucker in Reuters, in Cancun: This famous beach resort, which will next week host international climate change talks, was itself born from the destruction of a potent resource to fight global warming. Thick mangrove forests lined the canals and waterways here before developers dredged the land to make way for the upscale hotels that now draw several million tourists every year.

In the 40 years since Cancun was founded, countless acres of mangrove forests up and down Mexico's Caribbean Coast have been lost -- and the destruction continues. Now many scientists say that mangrove forests can help slow climate change, and are desperate to save them.

"We still have a lot to learn but the potential is huge for mangroves," said Gail Chmura, a climate change researcher at McGill University in Montreal who studies how much carbon is stored in these knobby, tidal forests.

As they process sunlight into food, mangroves suck an uncommon amount of industrial carbon out of the atmosphere and bury it deep within their underground network of roots. As nations looks desperately for "carbon sinks" that can capture and store carbon linked to climate change, mangroves are increasingly seen as a resource worth saving….

A mangrove stand in Chacahua, Mexico, photo by Bernardo BolaƱos, Wikimedia Commons, under the Creative Commons Attribution-Share Alike 3.0 Unported license

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