The initiative was started by American YouTubers MrBeast and Mark Rober, and was mostly supported by YouTubers.[1] All donations go to the Arbor Day Foundation, a tree-planting organization that pledges to plant one tree for every U.S. dollar donated.[2] The Arbor Day Foundation began planting in January 2020 and plans to end "no later than December 2022".[2][3] It is estimated that 23 million trees would take up 210 km2 (81 sq mi) of land,[4] absorb around 1.6 million tons of carbon and remove 116 thousand tons of chemical air pollution from the atmosphere.[5][6]