It's all thanks to a plastic microbelt developed by engineers Xudong Wang, Chengliang Sun and Jian Shi.

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Mr. Wang said on Friday that he worked with Sun Media's Mr. Wu to reach Mr. Buffett.

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The Sun can get at most 10% of this with Wang et al solar, less with Foukal solar.

WSJ: Climate Emails: Science and Candor

Sun and co-authors Lu Zheng of UC Irvine and Ashley Wang of the Federal Reserve studied the returns of some 5, 000 hedge funds from 1994 to 2011, adjusting for the funds' stock and bond exposure, currency bets, credit spreads and other factors that could account for performance.

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Wang, 43, co-founded Yantai Jinri OMY Construction Equipment Co. with Sun Weijie and Liu Zhenfeng in 1997.

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