Remember him singing "The Ice Caps Are Melting" in 1968? He got it that global warming delivers believers a high and is as much religion as science. "All the world is drowning, oh ho ho ho ho, to wash away the sin".Then there's, "windshields wiping, nowhere left to go!" The rising waters will heal the land, suppress technology and business while allowing the flower power kids to live off the land in harmony with Gaia mother earth. Lyrics.
The 4 minute song's a little creepy. That gets the Global Warming movement about right. If the evidence was there and the advocates less doctrinaire, I'd join the movement too. Evidence I see points to climate ripples in a proximate long term return to glaciation.