To give some numbers to that idea: "Around 0.9 billion hectares of land worldwide would be suitable for reforestation, which could ultimately capture two third

To give some numbers to that idea: "Around 0.9 billion hectares of land worldwide would be suitable for reforestation, which could ultimately capture two thirds of human-made carbon emissions." https://ethz.ch/en/news-and-events/eth-news/news/2019/07/how-trees-could-save-the-climate.html https://ethz.ch/en/news-and-events/eth-news/news/2019/07/how...