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What happened to the "spend < $1" earlier? What do you mean? He's saying that instead of spending about 60 trillion by 2030 we can instead spend only 9 trillio

• anthonyb 16y ago
  Yes - with a lot of assumptions, ie. that climate change is not going to be that bad. That's far from assured. 2 deg C is considered the danger point (ie. you'll see more drastic effects, possible positive feedback, etc.) by most climate scientists, and it looks like we'll hit that at around 2040-50 at the rate that we're going. But at the point that we hit 2degC and see bad effects, how long do you think it'll take to turn it around? The pessimistic side of me says that this will be yet another excuse not to do anything... until 2050 when 2C hits, at which point it'll cost a packet to try and fix the climate as quickly as possible, and the only way to fix things will be the drastic geoengineering, like pumping SO2 into the stratosphere, massive sea walls and solar shades in orbit.