As far as Charlie is concerned...the history of conservation and environmentalism is littered with con men and cult like leaders using the issue in an attempt to accomplish other goals. I am not surprised Charlie has hitched his wagon to this. I don't assign much importance to his signing on, other than how indicative it is that extremists have tried to latch onto environmentalism for decades now....but none of this 'guilt by association'.
BTW, Manson should sue Sheen for stealing his schtick.