Disclaimer: Clicking on Treebeard will not actually do anything, but he does appreciate your vigor. If you are in a position to give to the P4A this year, this link's for you! http://www.projectforawesome.com/
And if you want to help, but can't donate, you can vote for this video or share it with a friend, assuming that friend enjoys informal vlogs about awesome charities.
Sir Christopher Lee's excellent rendition of "Treebeard's Song" https://www.youtube.com/watch?v=9468-QKRoCg
Thanks to Mr. Beast, The Arbor Day Foundation, and the vlogbrothers for some of the footage used. DFTBA.