Environmentalists are destroying environmentalism. As a subset of that destruction, creators of the Intergovernmental Panel on Climate Change (IPCC) falsified science to claim that humans are causing global warming (AGW).
That false science wasted trillions of dollars and disrupted millions of lives. That is enough money to provide clean drinking water and basic sewage for every country in the world.
"Trillons of dollars" ?
The UN Environmental Program's entire budget is well under a billion a year, and UNEP has no fiscal or budgetary authority
Ball overstates the IPCC's expense by three orders of magnitude; at last account its per capita cost was 7.8 cents a year.