Short-Lived Climate Pollutants: Why Are They Important?

The document identifies short-lived climate pollutants (SLCPs)—including black carbon, methane, tropospheric ozone, and hydrofluorocarbons (HFCs)—as gases and particulates with atmospheric lifetimes of less than 20 years that contribute to approximately half of global warming. It argues that while CO2 reduction is vital for long-term stability, SLCP mitigation offers faster results to slow the rate of warming, particularly in sensitive regions like the Arctic and Himalayas. The text details the specific radiative forcing and warming potentials of these pollutants, their primary sources (such as oil and gas production and biomass burning), and the associated co-benefits for food security and public health.

• Short-lived climate pollutants (SLCPs) are responsible for approximately half of the global warming not caused by carbon dioxide and have atmospheric lifetimes of less than 20 years.
• Black carbon (soot) has a very short atmospheric lifetime of two to three weeks but a high warming impact; one ton can have a warming effect equal to 1,000-2,000 tons of CO2 over 100 years, and potentially over 4,000 tons over 20 years.
• Black carbon accelerates ice melt by settling on snow, glaciers, and sea ice, which reduces surface reflectivity (albedo) and increases solar energy absorption, especially in the Arctic and the Himalayas.
• Methane is a powerful warming agent with a radiative forcing of 0.48 W/m², and its primary emission source is the production of oil and gas.
• Hydrofluorocarbons (HFCs) are the fastest growing set of greenhouse gas emissions and are projected to double within a decade.

APA

Cross, J.-M., & Pierson, R. (2013). Short-Lived Climate Pollutants: Why Are They Important? Environmental and Energy Study Institute. https://www.eesi.org/files/FactSheet_SLCP_020113.pdf

Chicago

Cross, John-Michael, and Rachel Pierson. Short-Lived Climate Pollutants: Why Are They Important? Environmental and Energy Study Institute, 2013. https://www.eesi.org/files/FactSheet_SLCP_020113.pdf.

Wikipedia

{{cite report |last1=Cross |first1=John-Michael |last2=Pierson |first2=Rachel |title=Short-Lived Climate Pollutants: Why Are They Important? |publisher=Environmental and Energy Study Institute |date=February 2013 |url=https://www.eesi.org/files/FactSheet_SLCP_020113.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{cross2013shortlived, author = {Cross, John-Michael and Pierson, Rachel}, title = {{Short-Lived Climate Pollutants: Why Are They Important?}}, institution = {Environmental and Energy Study Institute}, year = {2013}, month = feb, url = {https://www.eesi.org/files/FactSheet_SLCP_020113.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }