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Which greenhouse gas contributes more global warming?

Atmospheric methane

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Journal Article•DOI The Response of Natural Ecosystems to the Rising Global CO2 Levels F. A. Bazzaz 01 Jan 1990-Annual Review of Ecology, Evolution, and Systematics 1.2K Citations	Because CO2 is a greenhouse gas, its increase in the atmosphere may influence the earth's energy budget.
Open access•Book Chapter•DOI Atmospheric Methane: Trends and Impacts Donald J. Wuebbles, Katharine Hayhoe - Show less +1 more 01 Jan 2000 27 Citations	On a per molecule basis, additional methane is much more effective as a greenhouse gas than additional CO2.
Open access•Journal Article•DOI Global energy accumulation and net heat emission Bo Nordell, Bruno Gervet - Show less +1 more 15 Jul 2009-International Journal of Global Warming 21 Citations	Such emissions from, e. g., the global use of fossil fuels and nuclear power, must contribute to global warming.
Open access•Journal Article•DOI Assessing the greenhouse impact of natural gas Lawrence M. Cathles 01 Jun 2012-Geochemistry Geophysics Geosystems 46 Citations	We show that substitution of natural gas reduces global warming by 40% of that which could be attained by the substitution of zero carbon energy sources.
Open access•Journal Article•DOI Atmospheric methane and global change Donald J. Wuebbles, Katharine Hayhoe - Show less +1 more 01 May 2002-Earth-Science Reviews 763 Citations	On a per molecule basis, it is much more effective a greenhouse gas than additional CO2.
Open access•Journal Article•DOI The Effect of Greenhouse Gases on Earth's Temperature Ahmad L. El Zein, Nour A. Chehayeb - Show less +1 more 15 Mar 2015-International Journal of Environmental Monitoring and Analysis 15 Citations	This study shows that global warming is the result of many factors including greenhouse gasses which can be reduced if people behave in a responsible way.

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