In this 2009 image provided by Charity: Water, Scott Harrison walks in a field in the northern region of Tigray in Ethiopia in 2009, as he visits a water project completed by local part

 

              In this 2009 image provided by Charity: Water, Scott Harrison walks in a field in the northern region of Tigray in Ethiopia in 2009, as he visits a water project completed by local part
In this 2009 image provided by Charity: Water, Scott Harrison walks in a field in the northern region of Tigray in Ethiopia in 2009, as he visits a water project completed by local partner, Relief Society of Tigray. Harrison's organization has funded nearly 7,000 clean water projects in some of the poorest areas of the world. He wanted to add sensors to the wells to give donors more assurances about the projects. But raising millions of dollars for the innovation was a problem. Google stepped in with major funding to create and install sensors on 4,000 wells across Africa that will send back real-time data on the water flow. Experts say the new annual grants are a part of a growing trend in venture philanthropy from donors who see technology as an instrument for social change. (AP Photo/Charity: Water)