At the Rain Centre, Mr Sekhar, a physics professor, demonstrates that rain falling on a typical Chennai flat roof can be gathered for use by the household in the kitchen and bathroom, and the rest channelled into wells where it can be used or go to replenish the water table.
Richey: That's the other half of what we see as a root cause of the past decade of flat or negative returns for the typical U.S.-based equity investor: they've been seriously under-exposed to International stocks over the past decade.