Simultaneously mitigating near-term climate change and improving human health and food security

Shindell DT, Kuylenstierna JCI, Vignati E, van Dingenen R, Amann M, Klimont Z, Kupiainen K, & Hoeglund-Isaksson L (2012). Simultaneously mitigating near-term climate change and improving human health and food security. Science 335 (6065): 183-189. DOI:10.1126/science.1210026.

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Abstract

Tropospheric ozone and black carbon (BC) contribute to both degraded air quality and global warming. We considered ~400 emission control measures to reduce these pollutants by using current technology and experience. We identified 14 measures targeting methane and BC emissions that reduce projected global mean warming ~0.5 degrees Celsius by 2050. This strategy avoids 0.7 to 4.7 million annual premature deaths from outdoor air pollution and increases annual crop yields by 30 to 135 million metric tons due to ozone reductions in 2030 and beyond. Benefits of methane emissions reductions are valued at $700 to $5000 per metric ton, which is well above typical marginal abatement costs (less than $250). The selected controls target different sources and influence climate on shorter time scales than those of carbon dioxide-reduction measures. Implementing both substantially reduces the risks of crossing the 2 degree Celsius threshold.

Item Type: Article
Research Programs: Mitigation of Air Pollution (MAG)
Air Quality & Greenhouse Gases (AIR)
Bibliographic Reference: Science; 335(6065):183-189 (13 January 2012)
Depositing User: IIASA Import
Date Deposited: 15 Jan 2016 08:46
Last Modified: 04 Apr 2016 10:18
URI: http://pure.iiasa.ac.at/10016

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