Carbon credits versus the Big Gulp

By planting cattails and tule reeds in a California Delta farmland, scientists hope to change the area into a marsh with peat that can store carbon dioxide. This would also support levees from failing and prevent salty ocean water from ruining crops and threatening drinking water. Managing this kind of landscape can be expensive, and farmers are not always on board with converting their land, but this pilot project has already doled out 52,000 tons of carbon credit making it the first wetland project in the United States to do so.

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