Water Scarcity Could Shrink Some Economies: Report

Economic growth rates in some parts of the world could shrink by as much as 6% by 2050 as water supplies dry up from climate change, according to a report released Tuesday from the World Bank.

"Growing populations, rising incomes and expanding cities will converge upon a world where the demand for water rises exponentially, while supply becomes more erratic and uncertain," warns the report entitled High and Dry: Climate Change, Water and the Economy.