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New international study finds lab testing of diesel NOx emissions underestimates real-world levels by up to 50%

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For light-duty vehicles, such as passenger cars, trucks, and vans, the European Union produced nearly 70% of the excess diesel nitrogen oxide emissions. In Europe, the ozone mortality burden each year would be 10% lower if diesel vehicle nitrogen oxide emissions were in line with certification limits. —Chris Malley.

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ICCT study finds that transitioning to low-GWP MAC refrigerants in China could avoid up to US$150B in costs

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Among the findings of the report, “HFC-134a phase-out in the Chinese light-duty motor vehicle sector”, was that, considering the social cost of CO 2 e, up to 1 trillion RMB in costs (US$150 billion) required to address climate change could be avoided through 2050 by transitioning to low-GWP alternative MACs. Background.

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International study of role of soots impact on Arctic climate

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If you want to be cooler, you would wear a light-colored shirt that would reflect the sun’s warmth. Aboard each aircraft will be a package of instruments to measure aerosol size, number, light absorption and chemical composition. Carbon is dark in color and absorbs solar radiation, much like wearing a black shirt on a sunny day.

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