Ignore whether global warming (manmade or not) is happening. Here’s an example of why I’m skeptical of the policy proposals intended to combat it:
The world needs to triple the energy it gets from renewables, nuclear reactors and power plants that use emissions-capture technology to avoid dangerous levels of global warming, United Nations scientists said.
Investments needed to keep climate change within safe limits would shave a fraction of a percent off annual global growth, the UN said yesterday in the third part of its most comprehensive study on warming. A delay in stemming rising greenhouse gases will cut chances to limit the global temperature increase, add to costs and lead to increasingly reliance on unproven technologies, they said.
Energy production, transportation, and cement production are the great producers of greenhouse gases. If people won’t accept curbs on transportation (they haven’t) and the level of investment required to build enough nuclear power plants, large scale windmills, and large scale solar isn’t imaginable (it isn’t), and we keep right on building roads, knocking down old buildings, and building new ones, I think you’re going to hear a lot more about ways to deal with the carbon that’s already been released than about releasing less.