Every so often we receive a well-meaning, but slightly plaintive communication from people who yearn for improved methods of carbon capture, by which they mean huge industrial undertakings not unlike the filthy power stations which they are meant to replace. “Good point!” we cry “but it’s going to take years to perfect the technology. Then scale it up. By which time it will all be much too late.” What if there are far more efficient carbon capture stations already out there, cheap to develop, quickly scalable, which might in addition act as huge natural flood defences. Before you reply “too good to be true” have a look at these two stories about wetlands which have recently crossed our screens.
Mangroves in Brazil Brazil has had more than its fair share of bad ecological news recently, what with chopping down massive swathes of the Amazon and so on. But now Mr Bolsonaro has gone, we are able to report a more hopeful story, by Maurice Saverese via Apple News.[1] A new project in the Guanabara Bay, near Rio De Janeiro has planted up to 30 000 mango trees. Not only will these act as a massive flood defence, stabilising the coastline against erosion, but will provide a valuable new source of income to local fisherman as crabs and other economically valuable species return to the healthy waters.
Wetlands in Washington Since the 1780s the USA has lost about half of its wetlands. Which is a shame because although wetlands comprise just 10% of the world’s surface, they contain perhaps 25% of its soil carbon. That at least is the estimate of a team from Washington University, who are investigating the potential of vast carbon-capturing wetlands beneath the rain forests of the Pacific Northwest [2] You’ll have to get past the paywall for this one from Natalia Mesa of the Atlantic, again via Apple News. but it’s well worth it. Because the rainy north west also includes parts of California, Oregon and much of western Canada. If the Americans can only keep out Trump and his supporters, then once again they might have saved the planet, this time on a massive scale.
Sometimes the answer lies not in doing new things, but adapting old ones to new uses.
thanks to P Seymour
#wetlands #carbon capture #mangroves #washington state #donald trump
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