The problem is that everyone in China, India and Africa want to live at US consumption standards. If they ever achieve those objectives, the world will not be able to sustain it.
2 things are therefore necessary:
- The US needs to control how much it consumes per person.
- China, India and Africa need to control their population growth.
China is at least addressing their population issues, but for the rest it is a case of epically racing towards disaster...