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Study: 2/3 of aviation climate impact due to emissions other than CO2

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It makes an important contribution to the scientific understanding we have of the role of aviation for climate change—an understanding decision-makers and politicians may need on the way to achieving the goals of the Paris Agreement. This new study is based on a thorough review of a decade of research on aviation emissions.

Climate 448
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Cutting Non-CO2 Pollutants Can Delay Abrupt Climate Change; The Fast Action Climate Agenda

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Noting the references in scientific and policy literature to the need for fast-action mitigation to help avoid DAI and abrupt climate changes, the authors define “fast-action” to include regulatory measures that can begin within 2–3 years, be substantially implemented in 5–10 years, and produce a climate response within decades.

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Toyota develops tropospheric ozone-concentration simulator for South and East Asia

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have developed a simulator able to predict tropospheric ozone concentrations across the whole of South and East Asia. Tropospheric ozone is the main cause of photochemical smog, an atmospheric pollutant harmful to human health and plant growth. Toyota Motor Corporation (TMC) and Toyota Central R&D Labs.,

Ozone 199
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Urban CO2 Domes May Enhance May Increase Ozone and PM, With Accompanying Increase in Mortality

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In a new study published online 10 March in the ACS journal Environmental Science and Technology , however, Stanford University professor Mark Jacobson finds that local CO 2 emissions in isolation may increase local ozone and particulate matter. Although the health impacts of such changes are uncertain, he notes, they are of concern.

Ozone 218
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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. Cronin, J. Melillo, D. Kicklighter, C.

Ozone 186
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GISS study finds applying stricter non-CO2 vehicle emission standards worldwide would yield climate benefits in addition to major health and agricultural benefits

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However, these standards will not reduce CO 2 emissions, which is required to mitigate long-term climate change, the team notes. However, these standards will not reduce CO 2 emissions, which is required to mitigate long-term climate change, the team notes. Shindell et al. trillion avoided health damage and $US1.1-4.3

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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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It is an unpalatable truth that unless we can succeed in greatly reducing CO 2 emissions we are headed for a very uncomfortable and challenging climate future, and geoengineering will be the only option left to limit further temperature increases. Professor John Shepherd, chair of the Royal Society’s geoengineering study.