There is no room for politics when we are playing for keeps. So say four Republicans, who served four Republican presidents as heads of the Evironmental Protection Agency. The climate is changing in Washington D.C., though still more slowly than in the Arctic.
My own view? Our uncontrolled experiments on our one and only planet must be curbed. Scientific evidence from many quarters show definitively that the Earth is warming. Science can give us arguments, strong but not airtight, that we may be responsible (mainly via carbon emissions, and the greenhouse effect of carbon dioxide). It cannot tell us reliably how bad the risks of a warmer Earth will be; there are too many uncertainties. But it seems to me that these are risks we shouldn’t be taking, period. We don’t get to mail-order another planet if we mess this one up.