James Hansen, who originally thought we were going into another ice age, is now using the 20th anniversary of his pronouncement that he was wrong, to call for the prosecution of the heads of EXXON/Mobil and other companies for crimes against humanity. And what are those crimes, you ask? Knowingly disregarding his advice that global warming is real. Or, at least, real in his mind. He is also going to campaign against anyone who denies global warming. Him and Cindy whatshername, would have a dramatic effect no doubt.
I suppose part of the proof may be that as Andy Hammond noted, the Brits are just not afraid of global warming, nor do they believe that it is man caused. Maybe, because they have learned that Mars is getting warmer at about the same rate as the Earth. Or maybe, they are just not willing to be stampeded into surrendering all that they have worked for, for a questionable theory based on flawed computer models.
Either way, his announcement shows that he is in the death throes of his 15 minutes of fame, and will soon be as irrelevant as old what's her name.