Truly green energy is not easy. I'ts even harder deep in the Amazon. Trials and tributaries from Dr. Emilio Moran, lead author of "Advancing convergence research: Renewable energy solutions for off-grid communities".
Then, sustainability expert Dr. Jem Bendell apologizes for bright-siding climate change.
From Harvard, Ye Tao's fast run-down of the Meer project - cooling Earth with mirrors.