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- W19827184 abstract "The authors show the concentrations of methane determined between the present and several thousand years ago based on various atmospheric studies and measurements from polar ice cores. The concentration of methane has more than doubled over the last century or two. These increases can be explained by increasing agriculture activities linked to the growth of population. Some increase of methane may also have occurred because there may now be fewer hydroxyl radicals in the troposphere compared to 100-200 years ago. If OH concentrations have declined, that too would have been caused by human activities. The models for sources and sinks and the mass balance that explain the past concentrations were projected into the future. The results indicate that the concentration of methane may double again, over a fairly long time. There are limits to the growth of methane concentrations based on present understanding of its sources and sinks so that concentrations more than double of present levels do not appear probable." @default.
- W19827184 created "2016-06-24" @default.
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- W19827184 date "1987-01-01" @default.
- W19827184 modified "2023-09-24" @default.
- W19827184 title "Trends of atmospheric methane over the last 10,000 years" @default.
- W19827184 hasPublicationYear "1987" @default.
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