Canada could remove 5 times its annual carbon emissions by planting trees on edge of boreal forest, study finds

Planting trees at the northern edge of Canada's boreal forest could remove a huge amount of carbon, study finds. Planting trees on 6.4 million hectares of northern taiga forest could remove 3.9 gigatons of CO2 by 2100 — five times Canada's annual emissions. Planting trees on 6.4 million hectares of northern taiga forest could remove 3.9 gigatons of CO2 by 2100 — five times Canada's annual emissions.