New Scientist: Is the earthworm turning into a global warming saviour? Earlier this year, the animals were cast as key contributors to climate change, but they may have been falsely accused.
A fifth of carbon dioxide emissions come from soils, and earthworms play a central role. They churn up soil, encouraging breakdown of organic matter to produce CO2. They also drive subterranean processes that both lock up and release carbon.
A recent review of more than 200 published studies by Ingrid Lubbers of Wageningen...