Sustainability is not just about CO2 emissions. Countries that have low per-capita greenhouse emission or pollution have their own ecological problems caused by

Sustainability is not just about CO2 emissions. Countries that have low per-capita greenhouse emission or pollution have their own ecological problems caused by e.g. deforestation, depletion of fishing grounds, depletion of water sources, extinction of species that are vital for food production, air/land/water pollution by garbage, toxic waste, plastics. Ever went to a less-developed south-asian country? Low per-capita CO2 emissions, but I wouldn't say a hallmark of sustainability, especially not in the densely populated areas. I would say reducing per-capita CO2 emissions is probably one of the easier problems to solve, especially considering the already huge differences between developed countries. But that alone is not going to save the planet, not by a long shot.