Are yesterday's "reds" today's "greens"?

A good article by Antonia Senior
in The Times comparing yesterdays reds with today's greens. Do take a read:

"The word evil is used advisedly. Both the green and red positions are infused with overpowering religiosity. Dissenters from the consensus are shunned apostates. Professor Ian Pilmer, the Australian geologist and climate change sceptic, could not find a publisher for his book Heaven and Earth, which questions the orthodoxy about global warming. He is the subject of hate mail and demonstrations. It is entirely immaterial whether he is right or wrong. An environment that stifles his right to a voice is worse than one that is overheating."