Throughout Earth's history, CO2 is thought to have exerted a fundamental control on
environmental change. Here we review and revise CO2 reconstructions from boron isotopes …

Water plays a critical role in erosion and sediment transport and this relationship is most
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …

The geological record encodes the relationship between climate and atmospheric carbon
dioxide (CO2) over long and short timescales, as well as potential drivers of evolutionary …

The early Eocene (56 to 48 million years ago) is inferred to have been the most recent time
that Earth's atmospheric CO 2 concentrations exceeded 1000 ppm. Global mean …

During the mid-Cretaceous, the Earth experienced several environmental perturbations,
including an extremely warm climate and Oceanic Anoxic Events (OAEs). Submarine …

The largest radiation of Phanerozoic marine animal life quadrupled genus-level diversity
towards the end of the Ordovician Period about 450 million years ago. A leading hypothesis …

Past changes in the atmospheric concentration of carbon dioxide (P co2) have had a major
impact on earth system dynamics; yet, reconstructing secular trends of past P co2 remains a …

Large-igneous-province volcanic activity during the mid-Cretaceous triggered a global-scale
episode of reduced marine oxygen levels known as Oceanic Anoxic Event 2 approximately …

Constraining the relationship between temperature and atmospheric concentrations of
carbon dioxide (p CO2) is essential to model near-future climate. Here, we reconstruct p …

'… there are known knowns. These are things we know that we know. There are known
unknowns. That is to say, there are things that we know we don't know. But there are also …