When you think about how to build a better world, think about providing clean water to about 663 million people worldwide who don’t have it.
The Cerro Verde copper mine built a wastewater treatment plant for Arequipa, Peru, solving the town's clean water needs as well as its own.
A Mexican group, Isla Urbana, is collecting and cleaning rainwater for households, schools and health clinics, and changing lives.
The Green Climate Fund will help developing countries mitigate and adapt to climate change. The fund has already approved eight proposals.
The reality is grim: worldwide, 780 million people — one out of every nine — lack access to clean water. Texas-born and Harvard-educated Anand Shah wanted a solution. After...