Field Notes from a Catastrophe

We are so screwed.

Arctic Ocean will be ice-free in the summer by 2080.

Permafrost not “perma” any more.

Ice-albedo - positive feedback loop - the faster the ice melts, the faster the ice melts.

Final paragraph:
“Ice core records also show that we are steadily drawing closer to the temperature peaks of the last interglacial, when sea levels were some fifteen feet higher than they are today. Just a few degrees more and the earth will be hotter than it has been at any time since our species evolved. The feedbacks that have been identified in the climate system - the ice-albedo feedback, the water vapor feedback, the feedback between temperatures and carbon storage in the permafrost - take small changes to the system and amplify them into much larger forces. Perhaps the most unpredictable feedback of all is the human one. With six billion people on the planet, the risks are everywhere apparent. A disruption in monsoon patterns, a shift in ocean currents, a major drought - any one of these could easily produce streams of refugees numbering in the millions. As the effects of global warming become more and more difficult to ignore, will we react by finally fashioning a global response? Or will we retreat into ever narrower and more destructive forms of self-interest? It may seem impossible to imagine that a technologically advanced society could choose, in essence, to destroy itself, but that is what we are now in the process of doing.”