Think younger (populations) are better, at least for a while? Look at Brazil's iron-ore giant Companhia Vale do Rio Doce (RIO:NYSE - news - research - Cramer's Take) or Vedanta Resources, a zinc-and-copper producer with major mines in India. And look for shares of companies that are working, for a good profit, to solve the problems looming ahead. A solar-systems wholesaler such as Conergy, for example. Or an insurer such as American International Group (AIG:NYSE - news - research - Cramer's Take) with a big presence in the exploding market for insurance in Asia.