We need to reforest an area the size of the USA as quickly as possible. Why the urgency? Ice shelves in Greenland are melting so fast that 197 billion tons melted in July 2019 alone, and abnormally vicious heatwaves all over Europe are becoming more intense and more frequent.
We're rapidly reaching a point where large areas of the planet will be too hot to plant forests, and increase in severity and duration of hurricanes is gonna rip out more trees than ever. The more we lose the worse everything gets, the more we plant the less fucked everything gets, so we need to go to town on planting trees right now.