If we keep on with business as usual, the Earth will be warmed more every year; drought and floods will be endemic; many more cities, provinces, and whole nations will be submerged beneath the waves - unless heroic worldwide engineering countermeasures are taken. In the longer run, still more dire consequences may follow, including the collapse of the West Antarctic ice sheet, and the inundation of almost all the coastal cities on the planet.

I never said it. Honest. Oh, I said there are maybe 100 billion galaxies and 10 billion trillion stars. It's hard to talk about the Cosmos without using big nu…

A central lesson of science is that to understand complex issues (or even simple ones), we must try to free our minds of dogma and to guarantee the freedom to …

Humans may crave absolute certainty; they may aspire to it; they may pretend, as partisans of certain religions do, to have attained it. But the history of sci…

It's like boxing a glacier. Enjoy that metaphor, by the way, because your grandchildren will have no idea what a glacier is.

And they say there's no global warming but right now the North Pole is a pool...there's things just floating away. Right now we are beyond global warming, at t…

Give me a half-tanker of iron, and I'll give you an ice-age.