[国际新闻] 华裔科学家朱棣文率研究团队投入地球变暖防御战

日月光

诺贝尔奖华裔物理学家朱棣文(Steve Chu)一直关注气候转变问题，留意所有相关最新消息。他现在更以劳伦斯柏克莱国家实验室最高负责人身分，带领这个美国能源部辖下科学研究最多元的国家实验室，发起正视及应付气候转变问题。* |2 n5 r2 R7 g) o  u7 y
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59岁的朱棣文最近受访谈及气候转变影响时表示：“这些预测都非常严重，必须有谨慎的风险管理，就好像说：“你的房子10年内会烧掉----或然率是50%。啊，顺便一提，你想要火灾保险吗？”
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  d9 ^( X  \" r: ]$ H3 irs238848.rs.hosteurope.de朱棣文具科学家渴求挑战的精神并有热忱。他主张科学是社会抵抗气候转变所致灾难的最佳防御，在国际间得到回应。加州理工化学教授兼朱棣文能源计划顾问Nate Lewis称，朱棣文现正以其领导地位挑战并武装科学家，让他们把握最后机会关注气候转变问题，因为已时间无多。/ v! f( T& r" n
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朱棣文这场运动最主要重点就是柏克莱加大、石油巨擘BP、劳伦斯柏克莱实验室和伊利诺大学，新达成的前所未见的研究协议。在推销实验室和柏克莱加大相关研究计划的影响力过程中，朱棣文扮演的角色某种程度上有助说服BP选中柏克莱实验室，建设5亿美元生化燃料研究所。
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耗资近4亿美元建设的新实验室空间将扩大以劳伦斯柏克莱实验室为中心的有关能源的分子研究工作，研究还会有各地其他合作伙伴参与。而3年内耗费1.6亿美元建设、由BP 提供经费的能源生物科学研究所(Energy Biosciences Institute)，研究项目就会包括朱棣文的太阳能计划。扩充规模后，劳伦斯柏克莱实验室和柏克莱加大将会成为全球推动另类燃料的中心。
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朱棣文认为，目前最需要的就是面对危机的意志，然后细分问题逐一解决。首要挑战是寻找可作大量供应的所谓无碳能源。气候转变的主要成因是大气中有太多碳。令问题更复杂的是未来数十年，煤和石油大概仍相对便宜并能提供大量燃料，尤其是在发展中国家。朱棣文正致力推动实验室在10至20年内发展无碳能源，特别是生化燃料和新一代太阳能蓄电池。0 r+ m* {8 A4 d; q, S
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A WARMING WORLD* I. F  P7 S* l# a0 N- J9 Q
As warnings grow more dire, Nobelist emerges as leaderrs238848.rs.hosteurope.de& l& U3 a! R% u" u+ w
The director of Lawrence Berkeley is pushing his scientists and industry to develop technologies to reverse climate change
+ \+ m0 ?8 p7 F) z: xSteve Chu keeps up with all the latest news on climate change, and he knows it's bad.
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The Nobel-winning physicist can tell you the projected meltdown rates for the snowpacks of Tibet and the Sierra Nevada. Rivers drying up and millions of people on the move looking for a drink of water? That future, a fantasy just a few years ago, has entered the realm of the possible.- i4 `5 @6 G' f) D

4 U9 p$ Z4 R  H+ U人在德国 社区But Chu isn't just talking.人在德国 社区4 l; p& u2 A+ U! h4 J, l' x

, k, O3 j$ @# _As head of Lawrence Berkeley National Laboratory, he is focusing all divisions of the most intellectually diverse of the U.S. Energy Department's national labs on a campaign to stand and fight.$ I  T, h+ `' y: N% q2 }

1 e; ~3 c) G/ Z3 p* M6 X5 ?6 M3 @rs238848.rs.hosteurope.de"These are serious predictions," Chu, 59, said in a recent interview. "It's prudent risk management. It's like saying, 'Your house will burn down in the next 10 years -- 50 percent probability. By the way, do you want fire insurance?' "
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6 B' v. N: v/ B8 x; s人在德国 社区Chu, who combines a scientific mind thirsting for challenges with an enthusiasm that people find catching, has emerged internationally to champion science as society's best defense against climate catastrophe.
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. ~7 _& q, o5 |4 W/ r/ b$ R"He's using his leadership to challenge their scientists and gear them into addressing this problem in the one last chance we have," said Nate Lewis, a chemistry professor at the California Institute of Technology and an adviser on Chu's energy program. "We don't have that much time."
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Chief in Chu's campaign is an unprecedented research pact reached recently between UC Berkeley, oil industry giant BP, the Lawrence Berkeley lab and the University of Illinois.# t4 R) M9 f: H; h: k, E0 t2 F, Y5 L
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Chu's role in promoting the clout of the closely aligned research programs at the lab and UC Berkeley helped convince BP to pick the campus for its $500 million biofuels institute.
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Nearly $400 million in new lab space will expand energy-related molecular work centered at Lawrence Berkeley that involves a cast of partners around the world. And a $160 million Energy Biosciences Institute to be built in three years and funded by BP will include Chu's separate solar energy program. The expansion will put the Lawrence Berkeley labs and UC Berkeley at the center of the world's push for alternative fuels.$ \5 P8 X- `, H; R" C

% Q/ u  l* l, e% F# o2 yTo Chu, whose heroes include Isaac Newton and Albert Einstein, what's needed now is the will to face the crisis and then to break it down into its component problems.
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New energy sources
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The first challenge is finding zero-carbon energy sources on a mass scale. Climate change results mainly from there being too much carbon in the atmosphere. Compounding the problem, coal and oil are likely to remain relatively cheap and abundant sources of fuel, especially in the developing world, for decades to come.
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Chu is building the lab's capacity to develop zero-carbon energy sources in 10 to 20 years, especially biofuels and a new generation of solar cells.
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The profile of lab namesake E.O. Lawrence's enormous particle colliders, which facilitated many breakthroughs in 20th century nuclear physics, has shrunk as the lab morphs into a plant designing and building bioengineered machines from molecule-sized parts. The focus is on the leverage gained when just about every molecule in a system is designed to do work.rs238848.rs.hosteurope.de2 u2 ^" |/ o+ t5 {6 c
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In the face of relentlessly rising demand, the world needs mass quantities of renewable fuels to keep the situation stable and an almost total conversion to renewables to significantly improve it.! Z# i5 r5 W1 b' P
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Racing against time, Chu is particularly interested in solar technology. His colleagues at the lab are thinking of farms of photovoltaic cells concentrating sunlight with a coating of nanoparticles, called "solar paint." And they're working on converting solar to liquid fuel by mimicking plant photosynthesis.
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Chu started the Helios Project as a framework for his total energy campaign and, not incidentally, a way to market the Lawrence Berkeley lab to private and government funders and to inform outsiders about the lab's work.
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5 B0 Y7 ^! D; yAddressing demand, politics
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The second challenge is consumption. The Lawrence Berkeley lab has been a world innovator on energy efficiency -- work leading to the invention of the compact fluorescent light bulb was done there. Chu wants more inventions like that. He's thinking about things like super-efficient commercial buildings and new designs for green cities.
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1 }9 R& S. }5 n$ e, {4 F7 ~Many nations have ambitious conservation goals but some of the largest, such as China, lack the means to reach them.
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"In order to get close, they really need our help." Chu said. "They're not going to do much till the U.S. leads the way."
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- q# w3 A* D  b) E, \8 vThe third challenge is politics. Numerous coal-fired power plants in China and India serve cheap electricity to the poor, and many more are planned. The poor and powerless can't do much about that, but the rich and politically powerful can. They can look scientific facts in the eye and afford to act prudently.
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$ \7 e8 J8 \+ J# qThey may find they can't afford not to.rs238848.rs.hosteurope.de  \& i' {8 }" T$ X" a
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"Give signals to industry there's going to be a price on carbon -- over a 10- to 15- year period," Chu said, suggesting a mechanism for making alternative fuels more attractive. "The history of innovation has taught us that, once people stop thinking politically and start thinking from a scientific point of view, surprisingly all the predictions of 'We can't do this' don't seem to come true."rs238848.rs.hosteurope.de( j6 F3 W+ N2 ?: I6 ]

; a" G9 C/ G7 }3 M$ _. Y6 {; ~; X  @+ mAt the Feb. 1 announcement of BP's largesse, Gov. Arnold Schwarzenegger held center stage. Over his left shoulder was Chu, a slim, cool figure. He wasn't saying "Hooray, we won," but this was a nice payment on that climate change insurance. Nice, but not enough. Even $1 billion, a figure Chu likes for the Lawrence Berkeley energy effort, may not be enough.
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+ R0 u; w( A& A5 Z- p人在德国 社区"That is actually a small amount of money because in the end, in order to get this out into production, it's going to be industrial investment that will carry the day," Chu said. "The issue is how do you get it, so you start partnerships with industry."7 b/ G1 H4 M6 d) @& w2 m' l# V
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Chu has raised $25 million from private sources for Helios, the state has pledged $70 million for the BP building and a winning bid for a federal biofuels lab would bring in another $125 million.- |+ x5 ?( X" f9 V$ `  r8 f

2 i" z3 q4 O( z$ Q; u, Q0 `# Y0 trs238848.rs.hosteurope.de"We spend more money in an hour buying gas at the pump than we spend funding solar energy research in our entire country for an entire year," said Caltech's Lewis.
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1 `8 V" m' U, t1 B$ ?" _The science establishment says what energy research needs is what weapons research has with the Defense Advance Research Projects Agency, a funding pool for high-risk research done by universities, industry and the national labs. Chu and other top scientists are promoting the idea, which Congress is considering.: [9 k) F4 C) J& `% u: C
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Chu came up with his energy strategy soon after he took his new job, moved by the increasingly dire news about climate change.
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+ M: r7 g5 S9 l5 M  J$ Qrs238848.rs.hosteurope.de"When he was first here, he started giving talks about energy and production of energy," said Bob Jacobsen, a senior scientist at the Lawrence Berkeley lab and a UC Berkeley physics professor. "He didn't just present a problem. He told us what we could do. It was an energizing thing to see. He's not a manager, he's a leader."7 }) I) h- r! e: `6 T) F6 E9 `; c; i
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Entrepreneurial attitude) C7 V. P9 e" `7 ?
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Chu came to the Lawrence Berkeley lab in 2004, hired away from Stanford. He did his graduate and post-doctoral work in physics at Cal before working as a technician at Bell Labs, and he was attracted to the idea of reinvigorating Lawrence Berkeley.
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4 E0 d% r# Y* _# TChu's colleagues talk at least as much about his leadership qualities as his technical skills. Arguably the lab's best proselytizer since Lawrence, he gets out there and sells. Lawrence Berkeley, in his scheme, is the hub of an "ecosystem" linking the different money, political and brain powers from Sacramento to Silicon Valley.
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1 }- u$ J1 q- E' W4 }" f* z7 _rs238848.rs.hosteurope.de"He's having a great time," said Cal physics professor and lab scientist Richard Muller. "He's really enjoying himself. He had the vision to recognize this was a wonderful opportunity."
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Chu picked up his entrepreneurial attitude toward science at Bell Labs, where he worked as a technician and led a research department from 1978 to 1987. Marvin Cohen, a UC Berkeley physics professor and lab scientist, said the atmosphere at Lawrence Berkeley lab "has changed significantly" under Chu.
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"The lab is more or less rewriting some of its charter, to do (more than) the science of how you convert light into energy or electricity," Cohen said. "It's not just the science, but also by bringing companies in, collaborating with them and making it easier for people like me, let's say, to file patents and license these patents out. All of a sudden we've become commercial. Fifteen or 20 years ago, none of my students even knew what a patent was.
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Chu wants the best and the brightest from elsewhere to come to Berkeley to help save the world -- and, who knows, win a Nobel before age 50 like he did.& ~7 q4 ^. L( i' V

! N) q0 C: A0 M5 S2 |; n3 r5 I"We'd like to recruit some of the emerging superstars and established superstars," Chu said.
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+ E. R; R! R( D1 s0 u& Urs238848.rs.hosteurope.de"It's beginning to happen," Chu said. "I think there really is a possibility that UCB and LBNL could be one of the intellectual centers of the world," he said.% U) `( k/ y* n- k

5 {) V1 I2 _; }5 V  c! C9 N"These are really great times."