From 1948 to the present, environmental activists have declared that the sky is falling. Link http://nofrakkingconsensus.com/2014/02/04/a-historical-perspective-on-hysterica… Tags Al Gore David Suzuki ethical & philosophical historical perspective predictions that failed Al Gore Christine Hoffbauer Fairfield Osborn It's a Matter of Survival (book) Limits of the Earth (book) Our Crowded Planet (book) Our Plundered Planet (book) Pierre Desrochers Road to Survival (book) William Vogt Source Donna Laframboise