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The RCP greenhouse gas concentrations and their extensions from 1765 to 2300
We present the greenhouse gas concentrations for the Representative Concentration Pathways (RCPs) and their extensions beyond 2100, the Extended Concentration Pathways (ECPs). These projectionsExpand
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On the global distribution, seasonality, and budget of atmospheric carbonyl sulfide (COS) and some similarities to CO2
[1] Measurements of carbonyl sulfide (COS) from a global air-monitoring network over multiple years suggest that atmospheric mixing ratios of COS are strongly influenced by terrestrial vegetation inExpand
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Small Interannual Variability of Global Atmospheric Hydroxyl
The abundance of the highly reactive hydroxyl radical is well buffered against perturbations. The oxidizing capacity of the global atmosphere is largely determined by hydroxyl (OH) radicals and isExpand
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Anthropogenic emissions of methane in the United States
Significance Successful regulation of greenhouse gas emissions requires knowledge of current methane emission sources. Existing state regulations in California and Massachusetts require ∼15%Expand
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A decline in tropospheric organic bromine
[1] Recent changes in atmospheric bromine (Br) are estimated from samples collected at ten globally distributed, ground-based sites. The results indicate that the global tropospheric burden of BrExpand
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Ruminants, climate change and climate policy
Greenhouse gas emissions from ruminant meat production are significant. Reductions in global ruminant numbers could make a substantial contribution to climate change mitigation goals and yieldExpand
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A record of atmospheric halocarbons during the twentieth century from polar firn air
Measurements of trace gases in air trapped in polar firn (unconsolidated snow) demonstrate that natural sources of chlorofluorocarbons, halons, persistent chlorocarbon solvents and sulphurExpand
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Evolution of alkyl nitrates with air mass age
Alkyl nitrates (RONO2) and alkanes (RH) were measured at Scotia, Pennsylvania, in 1988 and at the Kinterbish Wildlife Area, Alabama, in 1992. A simple kinetic analysis was developed to relate the twoExpand
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Toward a better understanding and quantification of methane emissions from shale gas development
Significance We identified a significant regional flux of methane over a large area of shale gas wells in southwestern Pennsylvania in the Marcellus formation and further identified several pads withExpand
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Recent decreases in fossil-fuel emissions of ethane and methane derived from firn air
Methane and ethane are the most abundant hydrocarbons in the atmosphere and they affect both atmospheric chemistry and climate. Both gases are emitted from fossil fuels and biomass burning, whereasExpand
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