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Study Finds Ozone, Nitrogen Change the Way Rising CO2 Affects Earths Water

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Through a recent modeling experiment, a team of NASA-funded researchers have found that future concentrations of carbon dioxide and ozone in the atmosphere and of nitrogen in the soil are likely to have an important but overlooked effect on the cycling of water from sky to land to waterways. Credit: NASA. Click to enlarge.

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Low-lying and other vulnerable countries calling for fast action on non-CO2 global warming pollutants

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Led by the tiny Pacific island of the Federated States of Micronesia, a growing group of low-lying islands and other vulnerable countries are calling for fast action on the approximately 50% of global warming that is caused by pollutants other than carbon dioxide (CO 2 ). million lives lost each year due to black carbon soot.

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Cutting Non-CO2 Pollutants Can Delay Abrupt Climate Change; The Fast Action Climate Agenda

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Cutting HFCs, black carbon, tropospheric ozone, and methane can buy us about 40 years before we approach the dangerous threshold of 2°C warming. —co-author HFCs are powerful greenhouse gases originally developed as substitutes for ozone-depleting chemicals. Black Carbon. From Molina et al. Earlier post.) Mario Molina. (Dr.

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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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The costs of transition are generally favorable compared to other available CO 2 reduction technologies for motor vehicles. MAC technology and equipment is generally of a commodity nature and is available through third-party suppliers to any vehicle manufacturer.

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Study Highlights the Importance of Considering Climate Effects of Non-CO2 Emissions from Transport in Mitigation Strategies and Policies

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The on-road transportation (ORT) and power generation (PG) sectors are major contributors to CO 2 emissions and a host of short-lived radiatively-active air pollutants, including tropospheric ozone and fine aerosol particles, that exert complex influences on global climate. Unger et al. Click to enlarge.

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Royal Society Report Concludes Geoengineering and its Consequences May be the Price for Failure to Act on Climate Change; Recommendations for Plan B

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Unless emissions of carbon dioxide can be greatly reduced—i.e., The report assesses the two main kinds of geoengineering techniques: Carbon Dioxide Removal (CDR) and Solar Radiation Management (SRM). However, there are some serious questions over adverse effects, particularly depletion of stratospheric ozone.

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Volkswagen to use CO2 as refrigerant for future air conditioning systems

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R134a replaced CFC-12 as the MAC refrigerant in the early 1990s due to the negative impact of CFCs on the Earth’s ozone layer. It has a high cooling capacity and is available worldwide at low cost in the required qualities. CO 2 is an A1 refrigerant, indicating minimal toxicity and non-flammability.

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