Reforestation is exactly what it sounds like: replacing forests that have been cut down or restocking forests that have been degraded through human activities like logging or natural means like forest fires. Experts say we have a lot of need for reforestation. Researchers estimate that the world lost as much as 411 million hectares of tree cover, or more than 1 billion acres, between 2000 and 2020, an area larger than India. Much of it fell to make room for agriculture, and deforestation is cont