4 ms·

Couldn’t agree more. Wrote this few years back: https://barac.at/essays/we-only-need-to-plant-1-trillion-trees https://barac.at/essays/we-only-need-to-plant-1-

• selcuka 1y ago
  Are you sure? There are currently 3 trillion trees on earth and they only absorb about 20% of greenhouse gas emissions (~9.5 GT of CO2) per year [1]. Apparently not all trees absorb the same amount of CO2 as in your assumption. Adding 1 more trillion trees would have a negligible effect. [1] https://www.pnas.org/doi/10.1073/pnas.1710465114 https://www.pnas.org/doi/10.1073/pnas.1710465114
  • somenameforme 1y ago
    It's not just the absorption as any stroll anywhere near a forest should tell you. They somehow cool areas dramatically, not just through shade, and change local systems substantially. Anyhow, if you want papers, there was one just recently discussed here. [1] It's expected that planting a trillion trees (amounting to global land coverage of ~8%) which is analogous to pre-industrial times, would reduce overall heating by some 25% (!!) by itself. This also opens the door to yet another not poorly understand feedback system - CO2 increases greenery which increases trees which decreases temperatures far more than previously expected. [1] - https://news.ycombinator.com/item?id=44221489 https://news.ycombinator.com/item?id=44221489