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

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Countries seeking to meet Paris Agreement targets on CO 2 emissions must get a grip on the amount of pollution produced at city level, according to a new open-access study published in S cience Advances by an international team of researchers from Europe and China. Total CO 2 emissions of 182 Chinese cities. Shan et al.

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Materials science as key enabler for clean energy transition

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If you don’t change direction, you will end up where you are heading,” said Lao Tzu, the father of Taoism. Energy use is projected to climb to 629 quad BTUs by 2020, and 813 quad BTUs by 2040. The global emissions of CO 2 doubled from 1975 to 2015, and are projected to triple by 2040 if we stay on our present course4.

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Self-Destructing Circuits and More Security Schemes

Cars That Think

Other researchers invented new ways to obfuscate electromagnetic emissions radiating from an active processor that might reveal its secrets. If it picks up that signal it engages what Lao called a protection engine, logic that can guard against the attack by, for example, instructing the processor to encrypt its data traffic.

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DEKRA-certified tests: Mercedes-Benz HD trucks cut fuel consumption 22% in 20 years while meeting more stringent emissions rules; VECTO

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Despite drastically more stringent emission standards for nitrogen oxides and particulates, the fuel consumption of Mercedes-Benz heavy trucks has been reduced by 22% over the last 20 years, according to the results of a comparative test drive certified by the test organization DEKRA. Click to enlarge. g/kWh of particulate mass. mpg US); and.

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

Cars That Think

Energy experts have been warning that electricity is likely to get more expensive and less reliable unless renewable power that waxes and wanes under inconstant sunlight and wind is backed up by generators that can run whenever needed. Points plotted here show the highest efficiency reported in five-year intervals.

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