Alternative energy

Can we find an alternative to fossil fuels? Watch these TED talks, in which scientists, inventors, entrepreneurs and activists share visionary ideas — wind, solar, even next-gen batteries — for the energy of tomorrow.

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Meet 3 people who might just save the world

It can be easy to feel hopeless when it comes to the global climate. Meet three leaders who are actually making a difference. What does “making a real difference about climate ...