krou writes: Talking at TED, Bill Gates backed a company (and type of energy) called Terrapower, which is essentially about getting energy from a nuclear reactor burning uranium-238 (depleted uranium), instead of the usual uranium-235, which constitutes approximately 99% of natural uranium. The whole speech sounded a bit like a sales pitch, but still interesting. Terrapower was set up by Intellectual Ventures, a think-tank created by ex-Microsoft chief scientist Nathan Myhrvold. According to BoingBoing, Bill Gates made the point that "the waste at [the Paducah Gaseous Diffusion Plant in Kentucky] could supply the US energy needs for 200 years (woah!), and filtering seawater for uranium could supply energy for much longer than that". Gates claimed that they're going to need several billion in investment to get the pilot plant off the ground. He also pointed out that nuclear energy advancements such as this are the best answer to combating climate change.
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