Scientists and other experts are now taking an even dimmer view of the effects of global warming, and believe it will decrease worldwide food production even as demand from an expanding population increases. At the same time, climate change will increase the competition for potable water. And some changes are already occurring.
A drought in southwestern China, where it has not rained in more than five months, is putting a damper on the lives of 50 million people, while costing the national economy $3 billion and leaving more than 20 million people without enough potable water.
The U.S. is under heavy criticism by human rights groups for withholding funds for clean water projects in Haiti as leverage for U.S.-led political reform in the country. A total of $54 million in loans to Haitians—70 percent of whom already lack daily access to potable water—is being delayed.