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NASA-led study identifies unprecedented depletion of stratospheric ozone layer above Arctic

Green Car Congress

A NASA-led study has documented an unprecedented depletion of Earth’s protective ozone layer above the Arctic last winter and spring caused by an unusually prolonged period of extremely low temperatures in the stratosphere. The same ozone-loss processes occur each winter in the Arctic.

Ozone 186
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Sponsors of SAE Study Conclude HFO-1234yf Can Be Used As Low-GWP Global Replacement Refrigerant in MAC Systems

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A two-year Cooperative Research Program conducted through SAE International to investigate the safety and environmental performance of the low-global-warming-potential (GWP) refrigerant HFO-1234yf for mobile air conditioning (MAC) systems has finished its study. he report is the third SAE report to evaluate the new refrigerant.

Global 186
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Perspective: US Needs to Transition to Hydrous Ethanol as the Primary Renewable Transportation Fuel

Green Car Congress

When the car is filled at the pump, an internal system analyses the mix of the two fuel types and adjusts accordingly. 80.27, “high ozone season” means the period from June 1 to September 15 of any calendar year and “regulatory control period” means the period from May 1 to September 15 of any calendar year. 40 CFR § 80.27 Conclusion.

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Scientists at Climate Talks Call for New Assessment of Nitrogen and Climate

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A side event organized by the International Nitrogen Initiative (INI) at the COP-15 United Nations Climate Change Conference in Copenhagen will highlight nitrogen’s role in climate change. Dr Cheryl Palm, the chair of the International Nitrogen Initiative (INI). Earlier post.).

Climate 186