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

Green Car Congress

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

Green Car Congress

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

The thousands of rocket launches needed to loft and maintain these space power stations would dump lots of soot, carbon dioxide, and other pollutants into the stratosphere, with uncertain climate impacts. As Lao Tzu observed long ago in the Tao Te Ching , “The truth is not always beautiful, nor beautiful words the truth.”

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