Laurie David, who called Richard Lindzen "discredited," has admitted to flying private jets "occasionally." Maybe she's off-setting her carbon the way a good environmentalist billionaire should--or maybe not--but in any case she's using more than her share of precious oil. She also have a second home in Sun Valley, Idaho--not exactly ecofriendly. She does drive a Toyota Prius hybrid, and convinced her husband to drive a Prius, and they use toilet paper from nonvirgin trees. She apparently flips the bird to Hummer drivers on the highway.
How many times do you have to fly on a private jet before you're a "discredited" environmentalist?