Just a quick reply since it is impossible to solve all the world's problems in an HN comment ;-) 1) You need to invest in poorer countries and lobby their gove

Just a quick reply since it is impossible to solve all the world's problems in an HN comment ;-) 1) You need to invest in poorer countries and lobby their governments to improve the condition women (possibly doing both at the same time by essentially bribing governments). This should naturally reduce population. You simply need to push the natural child bearing age out to 30. If you allow women the economic ability to resist getting married until they are in their late 20's this will solve the problem. Like I said, it can't be done quickly. It might take 100 years, so let's make the next doubling of population the last. 2) There is some misinformation about economics out there (from personal experience of being misinformed). I recommend reading some text books on the subject. The main thing to keep in mind is that interest paid is entered into the money supply. Interest is necessary to maintain inflation. Debt as money creation removes barriers to growth. I seriously have no room to explain further than that. I'll leave you with one more thing. From about 1600 (slightly after I think, but I can't recall when) until the mid 1800's it was illegal for most people to cut down trees in Japan (because by the year 1600 almost the entire country was in danger of deforestation). No wood, no coal, no oil, no electricity, and virtually no animal fats (legally "vegetarian"/pescatarian society) for 250 years. The next 100 years will be dramatically easier than that was and Japanese people still praise Edo society as being one of the most cultured in history. My point is not that our current rate of consumption is sustainable (it's obviously not). My point is that the alternatives are not necessarily worse.