Changes to Carbon Isotopes in Atmospheric CO2 Over the Industrial Era and Into the Future.
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ABSTRACT:
SUBMITTER: Graven H
PROVIDER: S-EPMC7757245 | biostudies-literature | 2020 Nov
REPOSITORIES: biostudies-literature
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Changes to Carbon Isotopes in Atmospheric CO<sub>2</sub> Over the Industrial Era and Into the Future.
Graven Heather H Keeling Ralph F RF Rogelj Joeri J
Global biogeochemical cycles 20201115 11
In this "Grand Challenges" paper, we review how the carbon isotopic composition of atmospheric CO<sub>2</sub> has changed since the Industrial Revolution due to human activities and their influence on the natural carbon cycle, and we provide new estimates of possible future changes for a range of scenarios. Emissions of CO<sub>2</sub> from fossil fuel combustion and land use change reduce the ratio of <sup>13</sup>C/<sup>12</sup>C in atmospheric CO<sub>2</sub> (δ<sup>13</sup>CO<sub>2</sub>). Thi ...[more]
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