Short Sharp Science: The end of the human race is nigh, maybe

Short Sharp Science: The end of the human race is nigh, maybe: "To say Frank Fenner is no fool is without doubt an understatement. He is an accomplished scientist, and that rarity in modern science, a polymath. As a virologist he helped lead the eradication of smallpox, while as a human ecologist he set up the respected Centre for Resource and Environmental Studies at the Australian National University.

So how worried should we be that Fenner told an Australian newspaper that humanity will be extinct within a century because of our failure to deal with global warming?"