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Satellite method provides insight into ozone-NOx-VOCs sensitivity for different locations

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Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. It is also not directly measurable from space due to the abundance of ozone higher in the atmosphere, which obscures measurements of surface ozone. —Jin et al.

Ozone 150
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Study: Hydrofluorocarbons Will Contribute Significantly to Global Warming by 2050

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Global ozone-depleting substances (ODSs) and HFC emissions (A), global CO 2 and HFC emissions (B), and ODS, HFC, and CO 2 global RF (C) for the period 2000–2050. These HFCs, gases used in refrigerators and air conditioners, are substitutes for ozone-depleting gases, but they are also strong greenhouse gases.

Global 150
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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. Tags: Climate Change Emissions Vehicle Systems.

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

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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. The water contained in hydrous ethanol blends also reduces NO x emissions. 40 CFR § 80.27 Pursuant to 40 CFR § 80.27(a)(2): 40 CFR § 80.27(d)

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

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The event organizers are calling for an immediate new assessment of nitrogen and climate which will identify innovative nitrogen management strategies for global climate change mitigation and associated co-benefits. Earlier post.). The nitrogen cycle is changing faster than that of any other element.

Climate 186