Carl Sagan Quote

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.

Chapter 11, "Ambush: The Warming of the World" - Billions and Billions: Thoughts on Life and Death at the Brink of the Millenium (1997)