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View article: Mapping the safe operating space of marine ecosystems under contrasting emission pathways
Mapping the safe operating space of marine ecosystems under contrasting emission pathways Open
Anthropogenic greenhouse gas emissions cause multiple changes in the ocean and its ecosystems through climate change and ocean acidification. These changes can occur progressively with rising atmospheric carbon dioxide concentrations, but …
View article: Evaluating Glacial CO <sub>2</sub> System Reconstructions From Benthic Proxies in Earth System Simulations
Evaluating Glacial CO <sub>2</sub> System Reconstructions From Benthic Proxies in Earth System Simulations Open
Reconstructing marine dissolved inorganic carbon (DIC) across glacial cycles is critical for understanding the sensitivity of the marine carbon sink to natural climatic change. Published estimates of DIC invoke linear relationships between…
View article: The influence of varying atmospheric CO<sub>2</sub> on global warming potentials and carbon emission impulse response functions
The influence of varying atmospheric CO<sub>2</sub> on global warming potentials and carbon emission impulse response functions Open
Impulse response functions (IRF), the response in a climate parameter to an emission pulse of CO 2 , are used to characterize Earth system response timescales and to calculate Global Warming Potentials (GWPs). GWPs are widely used to compa…
View article: Pathways for avoiding ocean biogeochemical damage: Mitigation limits, mitigation options, and projections
Pathways for avoiding ocean biogeochemical damage: Mitigation limits, mitigation options, and projections Open
Anthropogenic greenhouse gas emissions cause multiple changes in the ocean and its ecosystems through climate change and ocean acidification. These changes can occur progressively with rising atmospheric carbon dioxide concentrations, but …
View article: The relationship of transient oxygen and carbon cycle changes in simulations of repeated glacial cycles
The relationship of transient oxygen and carbon cycle changes in simulations of repeated glacial cycles Open
The glacial cycles of the late Pleistocene directly influenced the  oxygenation pattern of the global ocean, due to physical and biological changes responding to orbital and climatic change. These changes in past oxygenation had profo…
View article: Multi-model intercomparison of northern peatland carbon cycle&#160;
Multi-model intercomparison of northern peatland carbon cycle  Open
Peatlands cover only 3% of Earth’s land surface but contain about 30% of the global soil carbon pool. Derived predominantly from plant litter and moss accretions, peat deposits are critically sensitive to environmental dynamics such …
View article: Mitigation and implications of methane emissions from dairy cow barns
Mitigation and implications of methane emissions from dairy cow barns Open
Reaching the Paris Agreement temperature goals of no higher than +1.5°C or +2.0°C of global mean temperature change is quickly becoming difficult to reach by the end of the century. Not making the Paris Agreement temperature targ…
View article: Beyond EPICA: The Game
Beyond EPICA: The Game Open
Ice cores are a cornerstone of climate research, offering invaluable data on past atmospheric conditions to help us understand current climate change. The Beyond EPICA project seeks to recover a stratigraphically intact ice core from East …
View article: Sediment fluxes dominate glacial–interglacial changes in ocean carbon inventory: results from factorial simulations over the past 780 000 years
Sediment fluxes dominate glacial–interglacial changes in ocean carbon inventory: results from factorial simulations over the past 780 000 years Open
Atmospheric CO2 concentrations varied over ice age cycles due to net exchange fluxes of carbon between land, ocean, marine sediments, lithosphere, and the atmosphere. Marine sediments and polar ice cores archived indirect biogeochemical ev…
View article: Ensemble estimates of global wetland methane emissions over 2000–2020
Ensemble estimates of global wetland methane emissions over 2000–2020 Open
Due to ongoing climate change, methane (CH4) emissions from vegetated wetlands are projected to increase during the 21st century, challenging climate mitigation efforts aimed at limiting global warming. However, despite reports of rising e…
View article: No increase is detected and modeled for the seasonal cycle amplitude of <i>δ</i> <sup>13</sup> C of atmospheric carbon dioxide
No increase is detected and modeled for the seasonal cycle amplitude of <i>δ</i> <sup>13</sup> C of atmospheric carbon dioxide Open
Measurements of the seasonal cycle of δ13C of atmospheric CO2 (δ13Ca) provide information on the global carbon cycle and the regulation of carbon and water fluxes by leaf stomatal openings on ecosystem and decadal scales. Land biosphere ca…
View article: AERA-MIP: emission pathways, remaining budgets, and carbon cycle dynamics compatible with 1.5 and 2 °C global warming stabilization
AERA-MIP: emission pathways, remaining budgets, and carbon cycle dynamics compatible with 1.5 and 2 °C global warming stabilization Open
While international climate policies now focus on limiting global warming to well below 2 °C or pursuing a 1.5 °C level of global warming, the climate modelling community has not provided an experimental design in which all Earth system mo…
View article: Pathways for avoiding ocean biogeochemical damage: Mitigation limits, mitigation options, and projections
Pathways for avoiding ocean biogeochemical damage: Mitigation limits, mitigation options, and projections Open
Anthropogenic greenhouse gas emissions cause multiple changes in the ocean and its ecosystems through climate change and ocean acidification. These changes can occur progressively with rising atmospheric carbon dioxide concentrations, but …
View article: No increase is detected and modeled for the seasonal cycle amplitude of δ <sup>13</sup> C of atmospheric carbon dioxide
No increase is detected and modeled for the seasonal cycle amplitude of δ <sup>13</sup> C of atmospheric carbon dioxide Open
Measurements of the seasonal cycle of δ13C(CO2) provide information on the global carbon cycle and the regulation of carbon and water fluxes by leaf stomatal openings on ecosystem and decadal scales. Land biosphere carbon exchange is the p…
View article: The Modeled Seasonal Cycles of Surface N <sub>2</sub> O Fluxes and Atmospheric N <sub>2</sub> O
The Modeled Seasonal Cycles of Surface N <sub>2</sub> O Fluxes and Atmospheric N <sub>2</sub> O Open
Nitrous oxide (N 2 O) is a greenhouse gas and stratospheric ozone‐depleting substance with large and growing anthropogenic emissions. Previous studies identified the influx of N 2 O‐depleted air from the stratosphere to partly cause the se…
View article: Trends and Drivers of Terrestrial Sources and Sinks of Carbon Dioxide: An Overview of the TRENDY Project
Trends and Drivers of Terrestrial Sources and Sinks of Carbon Dioxide: An Overview of the TRENDY Project Open
The terrestrial biosphere plays a major role in the global carbon cycle, and there is a recognized need for regularly updated estimates of land‐atmosphere exchange at regional and global scales. An international ensemble of Dynamic Global …
View article: Supplementary material to "Sediment fluxes dominate glacial-interglacial changes in ocean carbon inventory: results from factorial simulations over the past 780,000 years"
Supplementary material to "Sediment fluxes dominate glacial-interglacial changes in ocean carbon inventory: results from factorial simulations over the past 780,000 years" Open
pCO 2 (ppm) Data with sediments no sediments 2.290 2.
View article: Sediment fluxes dominate glacial-interglacial changes in ocean carbon inventory: results from factorial simulations over the past 780,000 years
Sediment fluxes dominate glacial-interglacial changes in ocean carbon inventory: results from factorial simulations over the past 780,000 years Open
Atmospheric CO2 concentrations changed over ice age cycles due to net exchange fluxes between land, ocean, ocean sediments, atmosphere, and the lithosphere. Marine sediment and ice cores preserved biogeochemical evidence of these carbon tr…
View article: Ensemble estimates of global wetland methane emissions over 2000–2020
Ensemble estimates of global wetland methane emissions over 2000–2020 Open
Due to ongoing climate change, methane (CH4) emissions from vegetated wetlands are projected to increase during the 21st century, challenging climate mitigation efforts aimed at limiting global warming. However, despite reports of rising e…
View article: Global nitrous oxide budget (1980–2020)
Global nitrous oxide budget (1980–2020) Open
Nitrous oxide (N2O) is a long-lived potent greenhouse gas and stratospheric ozone-depleting substance that has been accumulating in the atmosphere since the preindustrial period. The mole fraction of atmospheric N2O has increased by nearly…
View article: Multiple thermal Atlantic Meridional Overturning Circulation thresholds in the intermediate complexity model Bern3D
Multiple thermal Atlantic Meridional Overturning Circulation thresholds in the intermediate complexity model Bern3D Open
Variations in the Atlantic Meridional Overturning Circulation (AMOC) are associated with Northern Hemispheric and global climate shifts. Thermal thresholds of the AMOC have been found in a hierarchy of numerical circulation models, and the…
View article: Earth system responses to carbon dioxide removal as exemplified by ocean alkalinity enhancement: tradeoffs and lags
Earth system responses to carbon dioxide removal as exemplified by ocean alkalinity enhancement: tradeoffs and lags Open
Carbon dioxide removal (CDR) is discussed for offsetting residual greenhouse gas emissions or even reversing climate change. All emissions scenarios of the Intergovernmental Panel on Climate Change that meet the ‘well below 2 °C’ warming t…
View article: High-resolution LGM climate of Europe and the Alpine region using the regional climate model WRF
High-resolution LGM climate of Europe and the Alpine region using the regional climate model WRF Open
In this study we present a series of sensitivity experiments conducted for the Last Glacial Maximum (LGM, ∼21 ka) over Europe using the regional climate Weather Research and Forecasting model (WRF). Using a four-step two-way nesting approa…