The CO2 content of the atmosphere has varied cyclically between ~180 and ~280 ppmv over the last 800,000 years, closely coupled with temperature and sea level. For earlier periods in Earth’s history, pCO2 is much less certain and the relationship between pCO2 and climate remains poorly constrained. We use boron/calcium ratios in foraminifera to estimate pCO2 during major climate transitions of the last 20 million years (myr). During the Middle Miocene, when temperatures were ~3 to 6°C warmer and sea level 25 to 40 meters higher than present, pCO2 was similar to modern levels. Decreases in pCO2 were synchronous with major episodes of glacial expansion during the Middle Miocene (~14 to 10 million years ago; Ma) and Late Pliocene (~3.3 to -2.4...
Knowledge of past atmospheric pCO2 is important for evaluating the role of greenhouse gases in clima...
The alkenone–pCO2 methodology has been used to reconstruct the partial pressure of ancient atmospher...
Throughout Earth's history, CO2 is thought to have exerted a fundamental control on environmental ch...
The CO2 content of the atmosphere has varied cyclically between ~180 and ~280 ppmv over the last 800...
International audienceAbstract. Constraints on the evolution of atmospheric CO2 levels throughout Ea...
Earth's climate cooled markedly during the Late Miocene from 12 to 5 million years ago, with far-rea...
International audienceEarth's climate cooled markedly during the late Miocene from 12 to 5 million y...
The dominant period of Pleistocene glacial cycles changed during the mid-Pleistocene from 40,000 yea...
The Mid-Pliocene is the most recent time in Earth's history when mean global temperatures were subst...
The Pliocene period is the most recent time when the Earth was globally significantly (~3°C) warmer ...
In the early Pleistocene, global temperature cycles predominantly varied with ~41kyr (obliquityscale...
Climate proxies indicate coupling between changes in atmospheric pCO2, global temperatures and ice v...
Knowledge of the evolution of atmospheric carbon dioxide concentrations throughout the Earth's histo...
The amplitude of climatic change, as recorded in the benthic oxygen isotope record, has varied throu...
The climate of the middle Miocene was substantially different to today with a much warmer world with...
Knowledge of past atmospheric pCO2 is important for evaluating the role of greenhouse gases in clima...
The alkenone–pCO2 methodology has been used to reconstruct the partial pressure of ancient atmospher...
Throughout Earth's history, CO2 is thought to have exerted a fundamental control on environmental ch...
The CO2 content of the atmosphere has varied cyclically between ~180 and ~280 ppmv over the last 800...
International audienceAbstract. Constraints on the evolution of atmospheric CO2 levels throughout Ea...
Earth's climate cooled markedly during the Late Miocene from 12 to 5 million years ago, with far-rea...
International audienceEarth's climate cooled markedly during the late Miocene from 12 to 5 million y...
The dominant period of Pleistocene glacial cycles changed during the mid-Pleistocene from 40,000 yea...
The Mid-Pliocene is the most recent time in Earth's history when mean global temperatures were subst...
The Pliocene period is the most recent time when the Earth was globally significantly (~3°C) warmer ...
In the early Pleistocene, global temperature cycles predominantly varied with ~41kyr (obliquityscale...
Climate proxies indicate coupling between changes in atmospheric pCO2, global temperatures and ice v...
Knowledge of the evolution of atmospheric carbon dioxide concentrations throughout the Earth's histo...
The amplitude of climatic change, as recorded in the benthic oxygen isotope record, has varied throu...
The climate of the middle Miocene was substantially different to today with a much warmer world with...
Knowledge of past atmospheric pCO2 is important for evaluating the role of greenhouse gases in clima...
The alkenone–pCO2 methodology has been used to reconstruct the partial pressure of ancient atmospher...
Throughout Earth's history, CO2 is thought to have exerted a fundamental control on environmental ch...