Look twice - it is very easy to miss Heartland's stash.
It is worthwhile to note that WWF, Sierra Club, GreenPeace, and many other such environut organizations also have budgets consisting of multiple hundreds-of-millions of dollars.
Also, don’t forget the billions spent by the EU promoting and defending the CAGW* paradigm. It costs a lot to jet tens of thousands of people, diplomats, and bureaucrats to South Africa, and Copenhagen, and other such places all the time, after all.
And, don’t holler at me for not believing science - I agree that Earth has been warming for the last 150 years - I simply categorically disagree with the alarmists about the reason.
*CAGW == Catastrophic Anthropogenic Global Warming