Bill McKibben on the emissions of trace amounts of invisible, natural, harmless atmospheric gas: "the worst thing that’s ever happened is happening"

Bill McKibben’s must-watch speech at Power Shift « Climate Progress

It’s tough, it’s grim, but the good news at least is that it’s clear, the science. We have a number: 350 parts per million. 350, the most important number on earth. As the NASA team put it in January 2008, “any value in the atmosphere greater than 350 parts per million is not compatible with the planet on which civilization developed and which life on earth is adapted.” Getting back to 350 pars per million will be very very tough, the toughest thing human beings have ever done, but there is no use complaining about it, it’s just physics and chemistry. That’s what we have to do.
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The Koch Brothers are high peaks of corruption, but the US Chamber of Commerce is the Everest of dirty money.
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The radicals are the people are the people who are fundamentally altering the composition of the atmosphere. That is the most radical thing people have ever done.
...The only thing that a morally awake person to do when the worst thing that’s ever happened is happening is try to change those odds.

I have spent most of my last few years in rooms around the world with great people, many of whom will be refugees before this century is out, some of whom may be dead from climate change before this century is out.