It doesn't matter what the US/Japan/Europe are doing population wise. The big issue with the future is that China and India was to be first world countries wit

It doesn't matter what the US/Japan/Europe are doing population wise. The big issue with the future is that China and India was to be first world countries with first world luxuries. India is currently 1.3 billion people and still growing 1-2% per year. China is currently 1.4 billion people. Still growing .3% per year (US is .4%) Dismissing first world population growth as "just being overflow" / immigration ignores the fact that people that immigrate to the US will quickly start consuming resources like an American. Population growth doesn't matter that much. What really matters is the resource consumption rates of the population. The environmental future is basically a conflict between India and China aspiring to Western resource consumption rates and luxury, and us praying they figure out how to do it sustainably. Otherwise: WAR.