NATURE: Afforestation is the cozy climate solution everyone likes. Fred Pearce believes it is far more important to fight logging and rather let the forest grow back on its own. He points out that with 25 per cent more trees, these would be able to pull as much as 200 billion tonnes of CO000 out of the atmosphere – enough in itself to keep us below the target of a 2 degree temperature rise by 1,5.