100,000? PFFFFFFFFFFFFFT!
Bet you a buck most of them are arm chair environmentalist who love indulgences. Sorry, carbon credits. "Concerned" college kids trying to get hippy chicks to think they care about stuff and , like, stuff, and impressionable 12 year olds.
A few of them might send a buck via pay pal but the vast majority of them are not going to do a damn thing about any thing that takes more effort then clicking a mouse or boring family at Thanksgiving. ( That is called raising awareness. Tho the only thing people become aware of is how annoying or pretentious they are. )
Most libs are like that. Hell you can't even get a decent protest unless you pay them, arrange transportation, and promise to feed them.