Marine anoxia linked to abrupt global warming during Earth’s penultimate icehouse


"Piecing together the history of carbon (C) perturbation events throughout Earth’s history has provided key insights into how the Earth system responds to abrupt warming. Previous studies, however, focused on short-term warming events that were superimposed on longer-term greenhouse climate states. Here, we present an integrated proxy (C and uranium [U] isotopes and paleo CO2) and multicomponent modeling approach to investigate an abrupt C perturbation and global warming event (∼304 Ma) that occurred during a paleo-glacial state. We report pronounced negative C and U isotopic excursions coincident with a doubling of atmospheric CO2 partial pressure and a biodiversity nadir. [...]".


Source: Proceedings of the National Academy of Sciences
Authors: Jitao Chen et al.

Read the full article here.

EBUS Conference 2022 - Call for Abstracts closing tomorrow

Call for Abstracts closing tomorrow

EBUS Conference: September 19 - 23, 2022, in Lima, Peru

This is a quick reminder that the abstract submission deadline for the EBUS Conference 2022 ends tomorrow, May 7, 2022.

Please visit the event's homepage for further information.