PNAS Plus Significance Statements Joint CO2 and CH4 accountability for global warming
نویسندگان
چکیده
We develop (pp. E2865–E2874) a transparent climate debt index, termed international natural debt, which combines historical emissions of CO2 from fossil sources and land use/forestry as well as CH4. It covers 205 countries and is a function of emissions, lifetimes, and radiative forcings. This index can be used to assess the implications of choosing between CO2 and CH4 control measures and facilitates more accurate international comparisons of a range of climate-change-related phenomena, as illustrated by imposed versus experienced health impacts. Including the two most important greenhouse gases in one index shifts the basic international narrative about differential accountability for climate change.
منابع مشابه
Joint CO2 and CH4 accountability for global warming.
We propose a transparent climate debt index incorporating both methane (CH4) and carbon dioxide (CO2) emissions. We develop national historic emissions databases for both greenhouse gases to 2005, justifying 1950 as the starting point for global perspectives. We include CO2 emissions from fossil sources [CO2(f)], as well as, in a separate analysis, land use change and forestry. We calculate the...
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