Only about half the warming that has occurred up to now is due to CO2. The rest is caused by other greenhouse gases, particularly methane, carbon monoxide, volatile organic compounds, and black carbon particles (soot). Similarly, less than half of the total warming expected over the next 20 years will be caused by CO2. ... Recent modeling shows the way to have the biggest impact ... is to immediately reduce emission of these gases. ... Another important consideration is the impact on human health. Of all the greenhouse gases, CO2 is one of the least damaging.
Why, then, are methane and [others] not more prominent in discussions over global warming? One reason is that the official weighting scheme is out of date.
Polistra was named after the original townsite of Manhattan (the one in Kansas). When I was growing up in Manhattan, I spent a lot of time exploring by foot, bike, and car. I discovered the ruins of an old mill along Wildcat Creek, and decided (inaccurately) that it was the remains of the original site of Polistra. Accurate or not, I've always liked the name, with its echoes of Poland (an under-appreciated friend of freedom) and stars. ==== The title icon is explained here. ==== Switchover: This 2007 entry marks a sharp change in worldview from neocon to pure populist. ===== The long illustrated story of Polistra's Dream is a time-travel fable, attempting to answer the dangerous revision of New Deal history propagated by Amity Shlaes. The Dream has 8 episodes, linked in a chain from the first. This entry explains the Shlaes connection.