Steven Chu, A Political Scientist - TIME

Chu methodically explained that the science is clear, that we're boiling the planet — but also that science can save us, that we can innovate our way to sustainability. He acknowledged that the developed nations that made the mess can't tell the developing world not to develop, but he also warned that China is on track to emit more carbon in the next three decades than the U.S. has emitted in its history; that business as usual would intensify floods, droughts and heat waves in both countries; that greenhouse gases respect no borders. This earth, he concluded, is the only one we've got; it would be illogical and immoral to fry it. "Science has unambiguously shown that we're altering the destiny of our planet," he said. "Is this the legacy we want to leave our children and grandchildren?"
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Chu does have an inconvenient habit of speaking his mind. At Tsinghua, he told audience members they ought to limit their driving to the weekends, a nonstarter in U.S. politics if ever there was one. In our interview, he suggested that Americans should get over their need for gas-guzzling speed ("Believe me, 0 to 60 [m.p.h.] in 8.5 sec. is fine") and meat-heavy diets ("We really don't need 12-oz. steaks every day") before he realized he was making energy transformation sound like a bummer — and abruptly changed the subject. "I don't want to deliver too many messages," Chu said, more to himself than to me. "I need to focus on 'Let's not let this incredible opportunity slip away.'"
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In fact, GOP leaders have said that global warming is a hoax, that fears about carbon are "almost comical," that the earth is actually cooling. When I asked Chu about the earth-is-cooling argument, he rolled his eyes and whipped out a chart showing that the 10 hottest years on record have all been in the past 12 years — and that 1998 was the hottest. He mocked the skeptics who focus on that post-1998 blip while ignoring a century-long trend of rising temperatures: "See? It's gone down! The earth must be cooling!" But then he got serious, almost plaintive: "You know, it's totally irresponsible. You're not supposed to make up the facts."