1. High-fidelity record of Earth's climate history puts current changes in context  Phys.org
  2. 66 Million Years of Earth’s Climate History Uncovered – Puts Current Changes in Context  SciTechDaily
  3. Global temperatures to reach a level not seen in 50 MILLION years  Daily Mail
  4. An astronomically dated record of Earth's climate and its predictability over the last 66 million years  Science Magazine
  5. Earth barreling toward 'Hothouse' state not seen in 50 million years, epic new climate record shows  Live Science
  6. View Full coverage on Google News
For the first time, climate scientists have compiled a continuous, high-fidelity record of variations in Earth's climate extending 66 million years into the past. The record reveals four distinctive climate ...

High-fidelity record of Earth's climate history puts current changes in context

A continuous record of the past 66 million years shows natural climate variability due to changes in Earth's orbit around the sun is much smaller than projected future warming due to greenhouse gas emissions. For the first time, climate scientists have compiled a continuous, high-fidelity record

66 Million Years of Earth’s Climate History Uncovered – Puts Current Changes in Context

66 Million Years of Earth’s Climate History Uncovered – Puts Current Changes in Context – SciTechDaily

Deep-sea benthic foraminifera preserve an essential record of Earth's past climate in their oxygen- and carbon-isotope compositions. However, this record lacks sufficient temporal resolution and/or age control in some places to determine which climate forcing and feedback mechanisms were most important. Westerhold et al. present a highly resolved and well-dated record of benthic carbon and oxygen isotopes for the past 66 million years. Their reconstruction and analysis show that Earth's climate can be grouped into discrete states separated by transitions related to changing greenhouse gas levels and the growth of polar ice sheets. Each climate state is paced by orbital cycles but responds to variations in radiative forcing in a state-dependent manner. Science , this issue p. [1383][1] Much of our understanding of Earth’s past climate comes from the measurement of oxygen and carbon isotope variations in deep-sea benthic foraminifera. Yet, long intervals in existing records lack the temporal resolution and age control needed to thoroughly categorize climate states of the Cenozoic era and to study their dynamics. Here, we present a new, highly resolved, astronomically dated, continuous composite of benthic foraminifer isotope records developed in our laboratories. Four climate states—Hothouse, Warmhouse, Coolhouse, Icehouse—are identified on the basis of their distinctive response to astronomical forcing depending on greenhouse gas concentrations and polar ice sheet volume. Statistical analysis of the nonlinear behavior encoded in our record reveals the key role that polar ice volume plays in the predictability of Cenozoic climate dynamics. [1]: /lookup/doi/10.1126/science.aba6853

An astronomically dated record of Earth’s climate and its predictability over the last 66 million years | Science

German and US experts analysed cores drilled up from the seabed over the last five decades to reconstruct the Earth's climatic history back to the time of the dinosaurs.German and US experts analysed cores drilled up from the seabed over the last five decades to reconstruct the Earth's climatic history back to the time of the dinosaurs.

Climate change: Global temperatures on track to reach a level not seen in 50 MILLION years by 2300 | Daily Mail Online

Scientists used marine fossils and orbital data to recreate 66 million years of climate history. Its shows that climate change is anything but 'normal.'Record goes back to the dinosaur extinction.

Earth barreling toward 'Hothouse' state not seen in 50 million years, epic new climate record shows | Live Science