Marcus P. S. Badger
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View article: Marine burial of terrestrial organic carbon modulates past warm climates
Marine burial of terrestrial organic carbon modulates past warm climates Open
The Palaeocene-Eocene Thermal Maximum (PETM), ~56 million years ago, was characterised by large-scale carbon release (~3,000-10,000 petagrams of carbon) and transient global warming (4-6°C over 10,000 years). Erosion and subsequent burial …
View article: Co-Constructing “Third Spaces” for Engagement with and for Minoritized Community Groups and Environmental Scientists
Co-Constructing “Third Spaces” for Engagement with and for Minoritized Community Groups and Environmental Scientists Open
The demographics of environmental and Earth scientists are not representative of the UK’s multicultural society. We sought to widen diversity and engage equitably through two related engaged research projects, “Walking the Walk” and “Lands…
View article: Co-constructing ‘third spaces’ for engagement between minoritized community groups and environmental scientists
Co-constructing ‘third spaces’ for engagement between minoritized community groups and environmental scientists Open
The demographics of environmental and Earth scientists are not representative of the UK’s multicultural society. We sought to widen diversity through two related engaged research projects, 'Walking the Walk' and 'Landscape Stories'. This p…
View article: Spatial and Temporal Patterns in Petrogenic Organic Carbon Mobilization During the Paleocene‐Eocene Thermal Maximum
Spatial and Temporal Patterns in Petrogenic Organic Carbon Mobilization During the Paleocene‐Eocene Thermal Maximum Open
The Paleocene‐Eocene Thermal Maximum (PETM) was a transient global warming event and is recognized in the geologic record by a prolonged negative carbon isotope excursion (CIE). The onset of the CIE was due to a rapid influx of 13 C‐deplet…
View article: Toward a Cenozoic history of atmospheric CO <sub>2</sub>
Toward a Cenozoic history of atmospheric CO <sub>2</sub> Open
The geological record encodes the relationship between climate and atmospheric carbon dioxide (CO 2 ) over long and short timescales, as well as potential drivers of evolutionary transitions. However, reconstructing CO 2 beyond direct meas…
View article: Spatial and Temporal Patterns in Petrogenic Organic Carbon Mobilisation during the Paleocene-Eocene Thermal Maximum
Spatial and Temporal Patterns in Petrogenic Organic Carbon Mobilisation during the Paleocene-Eocene Thermal Maximum Open
The Paleocene-Eocene Thermal Maximum (PETM) was a transient global warming event recognised in the geologic record by a prolonged negative carbon isotope excursion (CIE). The onset of the CIE was the result of a rapid influx of 13C-deplete…
View article: Spatial patterns of fossil carbon mobilisation during the Paleocene-Eocene Thermal Maximum
Spatial patterns of fossil carbon mobilisation during the Paleocene-Eocene Thermal Maximum Open
View article: Plio-Pleistocene productivity reconstructions in the Indian Monsoon region
Plio-Pleistocene productivity reconstructions in the Indian Monsoon region Open
<p>The Indian Summer Monsoon (ISM) brings seasonal winds and rains to the Indian subcontinent.  The winds cause surface ocean mixing in the southern Bay of Bengal (BoB), bringing nutrients to the surface that fuel ocean prod…
View article: Alkenone isotopes show evidence of active carbon concentrating mechanisms in coccolithophores as aqueous carbon dioxide concentrations fall below 7 µmol L <sup>−1</sup>
Alkenone isotopes show evidence of active carbon concentrating mechanisms in coccolithophores as aqueous carbon dioxide concentrations fall below 7 µmol L <sup>−1</sup> Open
Coccolithophores and other haptophyte algae acquire the carbon required for metabolic processes from the water in which they live. Whether carbon is actively moved across the cell membrane via a carbon concentrating mechanism, or passively…
View article: Reply to reviewer 1
Reply to reviewer 1 Open
View article: Reply to reviewer 2
Reply to reviewer 2 Open
View article: Author response to 'Suggestions', by Joep van Dijk
Author response to 'Suggestions', by Joep van Dijk Open
You are right that there are not large differences between equilibrium at the different sites, although there are some differences, which are lost in the scale needed for a global figure like figure 2.
View article: Alkenone isotopes show evidence of active carbon concentratingmechanisms in coccolithophores as aqueous carbon dioxideconcentrations fall below 7 μmol L <sup>−1</sup>
Alkenone isotopes show evidence of active carbon concentratingmechanisms in coccolithophores as aqueous carbon dioxideconcentrations fall below 7 μmol L <sup>−1</sup> Open
Coccolithophores and other haptophyte algae acquire the carbon required for metabolic processes from the water in which they live. Whether carbon is actively moved across the cell membrane via a carbon concentrating mechanism, or passively…
View article: Alkenone isotopes show evidence of active carbon concentrating mechanisms in coccolithophores as aqueous carbon dioxide concentrations fall below 7 µmolL-1
Alkenone isotopes show evidence of active carbon concentrating mechanisms in coccolithophores as aqueous carbon dioxide concentrations fall below 7 µmolL-1 Open
Coccolithophores and other haptophyte algae acquire the carbon required for metabolic processes from the water in which they live. Whether carbon is actively moved across the cell membrane via a carbon concentrating mechanism, or passively…
View article: Reconstructing Past Indian Summer Monsoon Productivity and Stratification During the Late Pliocene and Early Pleistocene
Reconstructing Past Indian Summer Monsoon Productivity and Stratification During the Late Pliocene and Early Pleistocene Open
<p>The South Asian or Indian Summer Monsoon (ISM) brings seasonal winds and rains to the Indian subcontinent and affects billions of people.  It is likely that the global monsoon will strengthen in a 1.5 °C warming …
View article: The biogeochemical impact of glacial meltwater from Southwest Greenland
The biogeochemical impact of glacial meltwater from Southwest Greenland Open
View article: A predictive algorithm for wetlands in deep time paleoclimate models
A predictive algorithm for wetlands in deep time paleoclimate models Open
Methane is a powerful greenhouse gas produced in wetland environments via microbial action in anaerobic conditions. If the location and extent of wetlands are unknown, such as for the Earth many millions of years in the past, a model of we…
View article: Insensitivity of alkenone carbon isotopes to atmospheric CO <sub>2</sub> at low to moderate CO <sub>2</sub> levels
Insensitivity of alkenone carbon isotopes to atmospheric CO <sub>2</sub> at low to moderate CO <sub>2</sub> levels Open
Atmospheric pCO2 is a critical component of the global carbon system and is considered to be the major control of Earth's past, present, and future climate. Accurate and precise reconstructions of its concentration through geological time …
View article: Author response to anonymous referree #2
Author response to anonymous referree #2 Open
View article: Author response to anonymous referree #1
Author response to anonymous referree #1 Open
We are
View article: Alkenone carbon isotopes, unsatutation measurements, coccolith size and stable planktic foraminifera carbon isotopes for estimation of atmospheric CO2 at ODP Site 999
Alkenone carbon isotopes, unsatutation measurements, coccolith size and stable planktic foraminifera carbon isotopes for estimation of atmospheric CO2 at ODP Site 999 Open
Atmospheric _p_CO~2~ is a critical component of the global carbon system and is considered to be the major control of Earth's past, present and future climate. Accurate and precise reconstructions of its concentration through geological ti…
View article: Alkenone carbon isotopes, unsatutation measurements, SST, and stable planktic foraminifera carbon isotopes for estimation of atmospheric CO2 at ODP Site 999 for 0.11 to 0.26 and 2.60 to 2.79 Ma
Alkenone carbon isotopes, unsatutation measurements, SST, and stable planktic foraminifera carbon isotopes for estimation of atmospheric CO2 at ODP Site 999 for 0.11 to 0.26 and 2.60 to 2.79 Ma Open
Alkenone carbon isotopes, unsatutation measurements, SST, and stable planktic foraminifera carbon isotopes for estimation of atmospheric CO2 at ODP Site 999 for 0.11 to 0.26 and 2.60 to 2.79 Ma
View article: Noelaerhabdaceae coccolith length measurements at ODP Site 999 for 0.11 to 0.26 Ma
Noelaerhabdaceae coccolith length measurements at ODP Site 999 for 0.11 to 0.26 Ma Open
View article: Insensitivity of alkenone carbon isotopes to atmospheric CO <sub>2</sub> at low to moderate CO <sub>2</sub> levels
Insensitivity of alkenone carbon isotopes to atmospheric CO <sub>2</sub> at low to moderate CO <sub>2</sub> levels Open
Atmospheric pCO2 is a critical component of the global carbon system and is considered to be the major control of Earth's past, present and future climate. Accurate and precise reconstructions of its concentration through geological time a…
View article: A Predictive Algorithm For Wetlands In Deep Time Paleoclimate Models
A Predictive Algorithm For Wetlands In Deep Time Paleoclimate Models Open
Methane is a powerful greenhouse gas produced in wetland environments via microbial action in anaerobic conditions. If the location and extent of wetlands are unknown, such as for the Earth many millions of years in the past, a model of we…
View article: No substantial long-term bias in the Cenozoic benthic foraminifera oxygen-isotope record
No substantial long-term bias in the Cenozoic benthic foraminifera oxygen-isotope record Open
View article: Causes of ice age intensification across the Mid-Pleistocene Transition
Causes of ice age intensification across the Mid-Pleistocene Transition Open
Significance Conflicting sets of hypotheses highlight either the role of ice sheets or atmospheric carbon dioxide (CO 2 ) in causing the increase in duration and severity of ice age cycles ∼1 Mya during the Mid-Pleistocene Transition (MPT)…
View article: The BRIDGE HadCM3 family of climate models: HadCM3@Bristol v1.0
The BRIDGE HadCM3 family of climate models: HadCM3@Bristol v1.0 Open
Understanding natural and anthropogenic climate change processes involves using computational models that represent the main components of the Earth system: the atmosphere, ocean, sea ice, and land surface. These models have become increas…
View article: Hydrological and associated biogeochemical consequences of rapid global warming during the Paleocene-Eocene Thermal Maximum
Hydrological and associated biogeochemical consequences of rapid global warming during the Paleocene-Eocene Thermal Maximum Open
The Paleocene-Eocene Thermal Maximum (PETM) hyperthermal, ~ 56 million years ago (Ma), is the most dramatic example of abrupt Cenozoic global warming. During the PETM surface temperatures increased between 5 and 9 °C and the onset likely t…
View article: The BRIDGE HadCM3 family of climate models:HadCM3@Bristol v1.0
The BRIDGE HadCM3 family of climate models:HadCM3@Bristol v1.0 Open
Understanding natural and anthropogenic climate change processes involves using computational models that represent the main components of the Earth system: the atmosphere, ocean, sea-ice and land surface. These models have become increasi…