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Planting trees cannot overcome climate change!

For many years scientists thought that planting trees could counteract the effects of climate change, but not anymore. A new report by a German institute has deflated that possibility to a large degree.

A whole industry has sprouted in the belief that growing trees and other kinds of biomass could turn the tide on climate change. Carbon credits are right now exchanged by countries who preserve forests or green spaces. These credits can be sold or traded to other countries. Companies do the same thing.

Several scenarios were played out and it seems that if we continue what we are doing right now our trees and forests could not absorb all the carbon dioxide that would be pumped in the atmosphere. Furthermore there would be harmful consequences on our food production.

Even if the levels of carbon dioxide are cut to reflect the Paris Agreement, tree planting alone is still not enough to reach the goal of keeping the average temperature of the planet under 2 degrees Celsius of pre-industrial levels. It seems that far from being the main solution to absorb all the carbon, tree planting can only be one strategy among others.

If one adds to the fact that not all trees are equal in absorbing carbon emissions, young forests absorbing more than old forests, it is clear that the real solution is cutting the rate at which we emit carbon dioxide. No other way is possible.

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