2 ms·
Per capita emissions is not the right metric. It seems like it should be, but if you compare by that metric you're really measuring poverty below a certain thre
by api 7y ago
Per capita emissions is not the right metric. It seems like it should be, but if you compare by that metric you're really measuring poverty below a certain threshold. A poor nation might have low CO2 per capita just because it's poor, but what production they do have could be fantastically inefficient (and often is due to old technology). As they climb out of poverty, as all seem to be doing, they'll become huge emitters.
Emissions per GDP is probably the best we have as GDP is a decent proxy for productivity, making it a real measure of efficiency. If the goal is to actually reduce emissions the goal must be to reduce CO2 emitted per unit of productivity, so you want to emulate the wealthier nations that have low CO2/GDP scores. That means emulating policies like renewable energy, efficiency standards, well designed cities, etc.
China is (last I looked) the least efficient large economy in terms of pollution per GDP. The USA is toward the middle of the pack.
- paul_milovanov 7y agoI agree that it's quite clear that environmental externalities per dollar GDP (and per dollar of exports) are massive. At the same time consider that as median incomes increase, marginal utility of clean(ish) environment vs income increases, public pressure mounts, and countries do tackle environmental externalities. That's the story of every country's industrial development since the British industrial revolution. Bread comes first, clean water and air come second. For rich western countries to forget that and demand that China and India put environment ahead of pulling people out of poverty is myopic at best and, realistically, highly hypocritical.