Professor who is engineering low-tech solutions to big problems for people living in poverty.
Inventor who created a low cost, portable, highly efficient water-filter.
I just sent out an email to a few of our church leaders exploring the possibility of including videos like these (lots more are available at www.ted.com and from other organizations) as monthly HOPE segments in our church. Sometimes, the problems of our world are so big that they are overwhelming. We lose hope that we can actually cause change. Maybe videos like this can help us regain hope - and with hope action.