renewable energy

Lifestyle & Belief

Windpower from Scratch

After dropping out of school as a teenager because of poverty and drought William Kamkwamba built a windmill out of discarded materials in his village. Kamkwamba tells anchor Marco Werman how the windmill brought electricity to his tiny village in Malawi.

Science, Tech & Environment

Geo answer

For our Geo Quiz today, we're looking for the largest -- and northernmost -- island in the Indonesian archipelago. The answer is Sumatra. Anna Sussman reports that the rush for environmentally-friendly fuel is having a devastating impact on the island's endangered orangutans.