articleEarth system science dataDec 12, 2016GOLD OA

The global methane budget 2000–2012

MSMarielle SaunoisPBPhilippe BousquetBPBenjamin PoulterAPAnna PeregonPCPhilippe Ciais

Centre National de la Recherche Scientifique · Université de Versailles Saint-Quentin-en-Yvelines · +56 more institutions

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Abstract

Abstract. The global methane (CH4) budget is becoming an increasingly important component for managing realistic pathways to mitigate climate change. This relevance, due to a shorter atmospheric lifetime and a stronger warming potential than carbon dioxide, is challenged by the still unexplained changes of atmospheric CH4 over the past decade. Emissions and concentrations of CH4 are continuing to increase, making CH4 the second most important human-induced greenhouse gas after carbon dioxide. Two major difficulties in reducing uncertainties come from the large variety of diffusive CH4 sources that overlap geographically, and from the destruction of CH4 by the very short-lived hydroxyl radical (OH). To address…

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Topics & keywords

Topics
Keywords
  • Greenhouse gas
  • Methane
  • Environmental science
  • Atmospheric methane
  • Global warming
  • Carbon cycle
  • Carbon dioxide
  • Carbon dioxide in Earth's atmosphere
UN Sustainable Development Goals
  • Life below water
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