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Researchers from Caltech and UC San Diego report very high performance catalysts to convert seed oils to olefins

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In a brief note highlighting the Caltech/UCSD work, Phil Szuromi at Science noted that linear-chain olefins are essential building blocks for both commodity products, such as lubricants and thermoplastics, and fine chemicals and drugs. The ethanolysis of fatty acids derived from seed oils could provide a renewable source of LAOs.

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Study: countries seeking to cut CO2 emissions must get a handle on city-level emissions

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Using China as a model, the team compared emissions data from 180 cities across the country, looking at the industrial make-up of each city, its socioeconomic profile, and the types of energy produced and consumed. Total CO 2 emissions of 182 Chinese cities. Shan et al. Yuli Shan, Dabo Guan, Klaus Hubacek, Bo Zheng, Steven J.

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A Skeptic’s Take on Beaming Power to Earth from Space

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The repeated hype cycles have ended the same way each time, with investors and governments balking at the huge investments that must be risked to build a system that cannot be guaranteed to work. Space Industry Experts Run the Numbers The U.S. But the contract and promises went unfulfilled. See diagrams.] consultancy.

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