Short-Lived Climate Forcers - MARAMA

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U.S. Domestic Sources of BCBC Emissions (0.64 Million Tons)1.1%35.3%52.3%3.6%1.0%6.8%Open Biom as s Bur ningEnergy/PowerMobile SourcesOtherRe side ntialIndustrialUS≈6% of Global
Mitigation of Black Carbon• Location of emissions matters for climate: main focus is on emissionsaffecting sensitive regions, such as the Arctic (i.e. emissions north of 40 olatitude) and other ice/snow covered regions (emissions reaching Himalayas)• Black carbon generally emitted (andcontrolled) as part of a pollution mixture– <strong>Climate</strong> impacts of mitigation depend onco-pollutant changes• Controls on some sources/sectors moreclearly climate beneficial than others (e.g.,mobile diesel vs. open biomass burning)– Ratio of BC to other (cooling) constituentslike organic carbon (OC) varies• Virtually all mitigation options will bebeneficial to public healthU.S. Environmental Protection Agency – Office of Air and Radiation23
Page 1 and 2: Short-Lived Climate ForcersMid-Atla
Page 3 and 4: Comparison of Global Average Radiat
Page 5 and 6: Even aggressive CO 2 reductions, ma
Page 7 and 8: Recent SLCF Activities• Conventio
Page 9 and 10: Attaining More Stringent Ozone NAAQ
Page 11 and 12: CH 4 is an O 3 Precursor• Address
Page 13 and 14: U.S. Methane Activities• Voluntar
Page 15 and 16: BLACK CARBON:IMPACTS AND MITIGATION
Page 17 and 18: Climate Impacts of BC• BC is most
Page 19 and 20: BC Impacts: GlaciersIn the Himalaya
Page 21: Global Sources of Black Carbon:(Lam
Page 25: Summary of Key Messages fromthis Pr

Short-Lived Climate Forcers - MARAMA

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