Little is known about how the methane source inventory and sinks have evolved over recent centuries. New and detailed records of methane mixing ratio and isotopic composition (12CH4, 13CH4 and 14CH4) from analyses of air trapped in polar ice and firn can enhance this knowledge. We use existing bottom-up constructions of the source history, including "EDGAR"-based constructions, as inputs to a model of the evolving global budget for methane and for its carbon isotope composition through the 20th century. By matching such budgets to atmospheric data, we examine the constraints imposed by isotope information on those budget evolutions. Reconciling both 12CH4 and 13CH4 budgets with EDGAR-based source histories requires a combination o...
Observations of atmospheric methane (CH4) since the late 1970s and measurements of CH4 trapped in ic...
The topics covered include the following: biogenic methane studies; forest soil methane uptake; rice...
Atmospheric methane (CH4) is a potent greenhouse gas, and its mole fraction has more than doubled si...
Little is known about how the methane source inventory and sinks have evolved over recent centuries....
Abstract. Little is known about how the methane source in-ventory and sinks have evolved over recent...
Methane (CH4) is a strong greenhouse gas and even though its atmospheric abundance is lower than car...
International audiencePast atmospheric methane emissions can be constrained by δ13CH4 records from i...
We report a 2000-year Antarctic ice-core record of stable carbon isotope mea-surements in atmospheri...
The availability δ13C-CH4 measurements from atmospheric samples has significantly improved in recent...
Methane is a strong greenhouse gas and large uncertainties exist concerning the future evolution of ...
Methane is a strong greenhouse gas and large uncertainties exist concerning the future evolution of ...
Atmospheric methane (CH4) increased from similar to 900 ppb (parts per billion, or nanomoles per mol...
Methane is a strong greenhouse gas and large uncertainties exist concerning the future evolution of ...
Atmospheric methane (CH<sub>4</sub>) increased from ~900 ppb (parts per billion, or nanomoles per mo...
The atmospheric trend of methane isotopic ratios since the mid-20th century has been reconstructed f...
Observations of atmospheric methane (CH4) since the late 1970s and measurements of CH4 trapped in ic...
The topics covered include the following: biogenic methane studies; forest soil methane uptake; rice...
Atmospheric methane (CH4) is a potent greenhouse gas, and its mole fraction has more than doubled si...
Little is known about how the methane source inventory and sinks have evolved over recent centuries....
Abstract. Little is known about how the methane source in-ventory and sinks have evolved over recent...
Methane (CH4) is a strong greenhouse gas and even though its atmospheric abundance is lower than car...
International audiencePast atmospheric methane emissions can be constrained by δ13CH4 records from i...
We report a 2000-year Antarctic ice-core record of stable carbon isotope mea-surements in atmospheri...
The availability δ13C-CH4 measurements from atmospheric samples has significantly improved in recent...
Methane is a strong greenhouse gas and large uncertainties exist concerning the future evolution of ...
Methane is a strong greenhouse gas and large uncertainties exist concerning the future evolution of ...
Atmospheric methane (CH4) increased from similar to 900 ppb (parts per billion, or nanomoles per mol...
Methane is a strong greenhouse gas and large uncertainties exist concerning the future evolution of ...
Atmospheric methane (CH<sub>4</sub>) increased from ~900 ppb (parts per billion, or nanomoles per mo...
The atmospheric trend of methane isotopic ratios since the mid-20th century has been reconstructed f...
Observations of atmospheric methane (CH4) since the late 1970s and measurements of CH4 trapped in ic...
The topics covered include the following: biogenic methane studies; forest soil methane uptake; rice...
Atmospheric methane (CH4) is a potent greenhouse gas, and its mole fraction has more than doubled si...