Five Best Ideas of the Day December 16
1. Micropayments and digital currencies will ignite an explosion of disruptive innovation. By Walter Isaacson in LinkedIn, 2. Latin America is taking the lead with progressive food policies  and putting public health above the interests of the food industry. By Andy Bellatti in Civil Eats, 3. To preserve biodiversity and lift up communities facing hunger in sub-Saharan Africa, indigenous plants might provide a solution. By Amy Maxmen in Newsweek, 4. Teacher preparation programs seek change with a pinpoint innovation approach. It's time for a broad scale transformation of teaching. By Kaylan Connally in EdCentral, 5. Making clean plastics from biofuel waste could free up valuable farmland for food crops. By Matt Safford in Smithsonian