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Even with the best intentions, it's not always easy to be green. There's a lot of conflicting information out there, for instance: Buy hybrid! Actually, if your old car is still running, it's probably better to keep it, because the manufacturing of a new car creates a greater carbon footprint...

Researchers at the Massachusetts Institute of Technology have discovered a way to make solar power cells 15-30% more efficient while barely effecting the cost. While this seems like a minute difference, it could mark a major breakthrough for the world's ability to rely on solar power as its main...