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Study Finds Stratospheric Water Vapor Is An Important Driver of Decadal Global Surface Climate Change

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Earlier observations from satellites and balloons suggest that stratospheric water vapor probably increased between 1980 and 2000, which would have enhanced the decadal rate of surface warming during the 1990s by about 30% compared to estimates ignoring this change, according to the authors. —Solomon et al.

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Heat Pumps Take on Cold Climates

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Katie Davis, Trane Technologies The colder the temperature outside, the harder heat pumps must work to extract and move enough heat to maintain the home’s temperature. They couldn’t get the lab any colder than that, so we had to cut the power to get the heat pump to turn off,” Davis says.

Climate 143
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Study: countries seeking to cut CO2 emissions must get a handle on city-level emissions

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Prof Dabo Guan, professor of climate change economics at the University of East Anglia (UEA), led the research, along with Dr Yuli Shan from UEA’s School of International Development. Rather than creating low-carbon pathways at a national level, we need a pathway for each city. —Prof Guan.

Emissions 210
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UMD collaborative study finds that fuel efficiency of one car in household may be cancelled out by next car purchase

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While this sounds like an all-too-logical conclusion, the study reports a 57% reduction in the benefits of driving the fuel efficient car for carbon emissions purely based on the purchase of the second vehicle.

Purchase 220
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New phase of globalization could undermine efforts to reduce CO2 emissions

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A new study finds that the growth of carbon production from Chinese exports has slowed or reversed, reflecting a “new phase of globalization” between developing countries that could undermine international efforts to reduce emissions. 2018) “China’s “exported carbon” peak: Patterns, drivers, and implications.” —Prof Guan.

Global 170
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EPA SmartWay honors 44 freight carriers for exceptional supply chain efficiency

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EPA’s SmartWay Transport Partnership is a market-driven initiative that empowers businesses to move goods in the cleanest, most energy-efficient way possible to protect public health and reduce the emissions that contribute to climate change. Davis Transfer Co. Cargo Transporters. Challenger Motor Freight Inc. DHL Express USA.

EPA 199
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Study finds global oil demand likely to grow despite pandemic, climate policies

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Columbia University’s Center on Global Energy Policy and the University of California, Davis Institute of Transportation Studies analyzed four scenarios to understand how COVID-19 and other political, economic, social and technological drivers may impact transportation activity and global oil demand.

Oil 259