This week’s Cosmos explained how plants produce clean energy…and how our inferior energy technologies produce climate change.
"Plants, after all, are the reigning global masters of clean energy. They use 100 percent solar power: The chloroplast, the so-called "powerhouse" of a plant cell, is a "3 billion-year-old solar energy collector" and a "sub-microscopic solar battery," as Tyson put it. Basically, chloroplasts use sunlight, carbon dioxide, and water to store energy in sugars, and give off oxygen as a by-product. And without this fundamental green energy technology, life on this planet as we know it wouldn’t exist."