Available Now!

Available Now!
What Social Animals Owe to Each Other

Saturday, September 18, 2021

CO2 and Global Cooling

If CO2 is implicated in global warming, not in its own right, but because it ​indirectly ​​leads to more water vapor, the dominant greenhouse gas, which amplifies what would otherwise be minor warming, then it could just as reasonably be implicated in global cooling, or at least reduced warming, because the resulting water vapor could condense into clouds, which reflect the sun's incoming radiation--preventing them from reaching the earth's surface​ and then being absorbed by the greenhouse gases​. (Scientists agree that clouding is highly complex and hasn't been captured by the climate computer models relied on by climate alarmists. See this from the American Chemical Society, which is in the climate alarmist camp.) 

This is an important point. According to alarmists, CO2 by itself is not the problem. The problem is the amplification by water vapor. But what if reduction is a possibility? Scientists don't know enough about clouding to regard it as unimportant. (Matt Ridley has a good discussion of this in this video.)

Similarly, the data from observations consistently show that the computer models overestimate the climate's sensitivity to changes in CO2. (See the Ridley video.)

So why the obsession with CO2? Renee Cho gives the answer at the Columbia (University) Climate School website: "while we have no way to control water vapor, we can control CO2." 

Controlling CO2 of course means controlling us.

No comments: