New research says most of
carbon emissions caused by humans
could be fixed by global planting projects. Worldwide, the report says there is
1.7 billion hectares of land where trees could be grown. This accounts for just over
one-tenth of all land on earth. All urban spots and areas where crops
are grown were
not included. The report's lead researcher, Professor Tom Crowther, says tree restoration is far more powerful
than previously thought. He adds that it would
take up to a century to be
fully effective in removing
carbon dioxide. Even though it doesn't detail a planting program, Crowther says
it is the cheapest way to
combat climate change. He adds anyone can get involved by
donating to restoration groups
or planting on their own.