GoKawiilLan, X., Thoning, K. W. & Dlugokencky, E. J. Trends in globally averaged CH 4 , N 2 O, and SF 6 determined from NOAA Global Monitoring Laboratory measurements. https://doi.org/10.15138/P8XG-AA10 (NOAA Global Monitoring Laboratory, 2026).
Kirschke, S. et al. Three decades of global methane sources and sinks. Nat. Geosci. 6, 813–823 (2013).
Intergovernmental Panel on Climate Change. Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change (Cambridge Univ. Press, 2023).
Saunois, M. et al. The global methane budget 2000–2017. Earth Syst. Sci. Data 12, 1561–1623 (2020).
Aydin, M. et al. Recent decreases in fossil-fuel emissions of ethane and methane derived from firn air. Nature 476, 198–201 (2011).
Simpson, I. J. et al. Long-term decline of global atmospheric ethane concentrations and implications for methane. Nature 488, 490–494 (2012).
Schaefer, H. et al. A 21st-century shift from fossil-fuel to biogenic methane emissions indicated by 13CH 4 . Science 352, 80–84 (2016).
Ghosh, J. in The World Economy through the Lens of the United Nations (eds Ocampo, J. A. et al.) 170–201 https://doi.org/10.1093/oso/9780198817345.003.0007 (Oxford Univ. Press, 2018).
Skeie, R. B., Hodnebrog, Ø. & Myhre, G. Trends in atmospheric methane concentrations since 1990 were driven and modified by anthropogenic emissions. Commun. Earth Environ. 4, 317 (2023).
Bousquet, P. et al. Contribution of anthropogenic and natural sources to atmospheric methane variability. Nature 443, 439–443 (2006).
... continue reading