1864 Expert Warning: Man’s Climate Excess Rapidly Destroying The Human Race
'As early as 1864 George Perkins Marsh, sometimes said to be the father of American ecology, warned that the earth was 'fast becoming an unfit home for its ‘noblest inhabitant,' and that unless men changed their ways it would be reduced 'to such a condition of impoverished productiveness, of shattered surface, of climatic excess, as to threaten the depravation, barbarism, and perhaps even extinction of the species'