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I hope to draw attention to the uncertainty of whether a trillion trees would improve our climate situation. Interested readers can refer to here: https://www.nature.com/articles/d41586-019-00122-z

The above article brings up the facts that extra trees emit organic compounds that increase the concentrations of non-CO2 GHG's. They also cause the surface of the earth to absorb (rather than reflect) more of the incoming heat.

I fear that as a solution which does not require any changes in industry or consumption, the tree initiative gets more attention that it deserves from its scientific merit.

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