Journal article Open Access

Improved Attribution of Climate Forcing to Emissions

Shindell, Drew T.; Faluvegi, Greg; Koch, Dorothy M.; Schmidt, Gavin A.; Unger, Nadine; Bauer, Susanne E.

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      <creatorName>Shindell, Drew T.</creatorName>
      <givenName>Drew T.</givenName>
      <creatorName>Faluvegi, Greg</creatorName>
      <creatorName>Koch, Dorothy M.</creatorName>
      <givenName>Dorothy M.</givenName>
      <creatorName>Schmidt, Gavin A.</creatorName>
      <givenName>Gavin A.</givenName>
      <creatorName>Unger, Nadine</creatorName>
      <creatorName>Bauer, Susanne E.</creatorName>
      <givenName>Susanne E.</givenName>
    <title>Improved Attribution of Climate Forcing to Emissions</title>
    <date dateType="Issued">2009-10-01</date>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
    <alternateIdentifier alternateIdentifierType="url"></alternateIdentifier>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1126/science.1174760</relatedIdentifier>
    <rights rightsURI="">Creative Commons Zero v1.0 Universal</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
    <description descriptionType="Abstract">Evaluating multicomponent climate change mitigation strategies requires knowledge of the diverse direct and indirect effects of emissions. Methane, ozone, and aerosols are linked through atmospheric chemistry so that emissions of a single pollutant can affect several species. We calculated atmospheric composition changes, historical radiative forcing, and forcing per unit of emission due to aerosol and tropospheric ozone precursor emissions in a coupled composition-climate model. We found that gas-aerosol interactions substantially alter the relative importance of the various emissions. In particular, methane emissions have a larger impact than that used in current carbon-trading schemes or in the Kyoto Protocol. Thus, assessments of multigas mitigation policies, as well as any separate efforts to mitigate warming from short-lived pollutants, should include gas-aerosol interactions. Chemical interactions between atmospheric gases and aerosols modify the global warming impacts of emissions. Chemical interactions between atmospheric gases and aerosols modify the global warming impacts of emissions.</description>
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