The other 2012 winners, who each receive $100,000, are:

Bhagwati (B.P.) Agrawal, 68, Sustainable Innovations Inc., Fairfax, Va.

By using his engineering expertise, Agrawal is mitigating the water shortage in his native India. Through his nonprofit, Sustainable Innovation...

Most people do good deeds without expecting to be repaid. The reward is the act in itself.

This week, Encore.org, a nonprofit that promotes second acts for the greater good, selected five Americans 60 and older to each win a $100,000 Purpose Prize for changing lives in...

You can have your Oscars, your Kennedy Honors, even your Hasty Puddings. For my money, the most important award of the year is the one that was just announced today: The Purpose Prize, given to people 60 and older who are truly making a difference in the world.

Encore.o...

Bhagwati (B.P.) Agrawal, 68, an engineer, whose group Sustainable Innovations uses technology to create durable enterprises to solve problems in the developing world, such as access to clean drinking water.