How To Power 10 Million Off-Grid African Homes In 10 Years
Taking cues from the pay-as-you-go mobile phone market, Erica Mackey and Off.Grid:Electric are working to deliver clean, affordable energy to the world’s rural poor.

Taking cues from the pay-as-you-go mobile phone market, Erica Mackey and Off.Grid:Electric are working to deliver clean, affordable energy to the world’s rural poor.
Deepika Kurup just won $25,000 for a device that uses the power of the sun to kill bacteria in water.
The GravityLight gets power from the slow lowering of a weight. All it takes is enough elbow grease to hoist the bag, and you can light a room with nothing but a bag of sand.
Written by: Rachael Chong
Claire Diaz-Ortiz works on the microblogging service’s social good and cause marketing initiatives, so she has a perfect view of how social media is helping organizations connect their stories to people around the world--and how that will change how we give back.
These companies’ founders are all members of a new generation of entrepreneurs who are looking to find disruptive ways of making money while also giving back.
A program in the nation’s poorest area uses urban farming to teach kids an entire curriculum, and create some fresh produce in the process.
Have some sick cooking skills but no one to serve it to? Wish you had someone making home-cooked meals for you? This new service will help make sure everyone can go to as many dinner parties as they want.
Yerdle--a new site where you can list things to give away--hopes to change how we view consumerism and make it easier to give unwanted purchases a second life.
After an extensive search, the Gates Foundation has given millions to this futuristic power-generating toilet from Caltech--with the hope that it can be the solution to sanitation problems around the world.
Sick of your produce going south before you get a chance to eat? Fenugreen FreshPaper--the brain child of Kavita Shukla, who patented the idea while still in high school--is an herb-infused sheet of paper that naturally keeps us from wasting food.
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