【TEDed】植树节特辑：树木对地球有什么影响？What if there were 1 trillion more trees

https://www.ed.ted.com
How can trees help in the fight against climate change? Dig into the efforts to rebuild damaged ecosystems and reduce carbon emissions.
树木是如何帮助抗击气候变化的？本视频深入研究有关重建受损的生态系统并减少碳排放的话题。