The Natural Fix?

stocks of approximately 384 Gt. While deserts and dry shrub- lands have very little aboveground biomass, they are significant soil carbon reservoirs and cover very large areas, so that their

overall contribution to carbon storage is notable. Conversely, the tundra biome covers the smallest area, but has the highest den- sity of carbon storage.

Source: adapted from Olson et al ., 2001.

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