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SPARC – Stratosphere-troposphere Processes And their Role in Climate

a core project of the World Climate Research Programme which coordinates international efforts to bring knowledge of the stratosphere to bear on relevant issues in climate variability and prediction * SPARC themes and activities address areas of societal concern such as:

  • Climate variability and change. A central issue within SPARC is the impact of changing atmospheric composition on circulation and weather, from increasing surface temperatures to severe weather events and rising sea-levels. The stratosphere represents a significant source of variability and internal memory of the climate system. More.

  • Ozone.  Ozone and the ozone layer are of major concern to life on Earth. SPARC provides key scientific support to the WMO/UNEP Ozone Assessments that are produced every four years in accordance with the mandate of the signatories of the Montreal Protocol. More.

  • Atmospheric chemistry and aerosols. Atmospheric chemistry is a cornerstone for understanding the evolution of the climate system. The effect of greenhouse gases (GHGs) and ozone depleting substances (ODSs) has been to warm the Earth’s surface while cooling the stratosphere. SPARC has been actively involved in advancing our understanding of the chemical processes that affect climate. More.

  • Polar processes. Melting ice sheets and shrinking sea-ice extent and thickness greatly affect not only the polar regions, but coastal regions all over the globe. SPARC is teaming up with other interested research organisations to bring its expertise to bear on scientific issues specific to the polar regions. More.



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