Around 0.9 billion hectares of land worldwide would be suitable for reforestation, which could ultimately capture two thirds of human-made carbon emissions. A study shows that shows this would be the most effective method to combat climate change.

Around 0.9 billion hectares of land worldwide would be suitable for reforestation, which could ultimately capture two thirds of human-made carbon emissions. A study shows that shows this would be the most effective method to combat climate change.