The four words that will define this century: The Earth is full.

@paulgilding at TED (via kateoplis)

The other issue toward the end of the century is going to be declining birth rates in developed countries. As raising a child becomes more expensive, and countries enact laws that limit population growth (similar to China’s), the birth rate in the developed world will drop below 2.1 per family. After that, the population the shrinking and causes a whole host of problems, not to mention issues with immigration needing to be encouraged.