World GDP was roughly $3.5 trillion (in today’s dollars, Maddison’s data is 1990 dollars) when global warming “started.”
World GDP is on the order of $80 trillion today.
CO2 concentrations were roughly 280 ppm at the “start” of global warming.
CO2 concentrations are roughly 400 ppm today.
What is the CO2 elasticity of “demand” with respect to GDP?
We simply compute the percentage change in CO2 concentrations divided by the percentage change on GDP.
CO2 concentrations have increased by 43%.
GDP has increased by about 2100%
Thus, the CO2 elasticity with respect to GDP is 0.02.
More to come … but I don’t think people think that is the “real” elasticity …
Interesting starting point. As an armchair economist, I’m guessing that the more important question going forward is the impact at the margin: how much CO2 is associated with the next incremental $ of GDP? I’d also guess that this is different for different countries. In the US, our emissions are falling (thanks, fracking!) while GDP grows, but I’d guess that increased GDP in China, India, or Uganda would come with increased emissions.
This is also interesting in terms of additional warming (ostensibly what we care about). The physics of CO2 as a greenhouse gas are such that each ppm generates less warming than the one previous to it (absent positive feedbacks). Thus marginal sensitivity should be less than historically observed sensitivity, yes? Seems like this creates opportunity to easily cherry-pick numbers that fit a narrative.
200031 947879Some actually good stuff on this internet site , I enjoy it. 301065
742685 576311youre in point of fact a great webmaster. The web site loading velocity is remarkable. It seems that youre performing any distinctive trick. In addition, The contents are masterpiece. youve done a fantastic activity on this topic! 205312
124358 261065This was an incredible post. Genuinely loved studying your website post. Your data was extremely informative and valuable. I feel you will proceed posting and updating often. Looking forward to your subsequent one. 666909
Good day! Do you know if they make any plugins to help with Search Engine Optimization?
I’m trying to get my blog to rank for some targeted keywords but I’m not
seeing very good gains. If you know of any please share.
Thank you! I saw similar art here: Eco wool
143295 771764I saw a lot of site but I believe this 1 has got something special in it in it 158466