This week, a high fidelity record of our planet’s temperature fluctuations was created and revealed, spanning a cool 66 million years in the past. This timeline is the most complete record of its kind and shows the global average temperatures of our planet as well as four significantly different states. These states were named Hothouse, Warmhouse, Coolhouse, and Icehouse.
The research report released this week states, “Here we present a new, high-resolution, astronomically dated, continuous composite of benthic foraminifer isotope records developed in our laboratories.” Each of the four states has its own responses to orbital variations. Each of these reactions leads to small changes in global temperatures compared to the giant shifts between the four climatic states.
“When reconstructing past climate zones, we were able to observe long-term rough changes quite well. We also knew that there should be finer rhythmic variability due to orbital variations, but for a long time it was considered impossible to restore this signal, ”said James Zachos, professor of Earth and Planetary Sciences at UC Santa Cruz.
“Now that we̵
According to Zachos, the IPCC projections in their “business-as-usual” scenario for the year 2300 will potentially skyrocket global temperatures. Projections in the study released this week suggest that global temperature “could bring global temperature to levels the planet has not seen in 50 million years,” Zachos said.
For more information on this subject, see the publication An Astronomically Dated Record of Earth’s Climate and Its Predictability over the Past 66 Million Years with the code DOI: 10.1126 / science.aba6853. This paper was written by Thomas Westerhold, Norbert Marwan, Anna Joy Drury et al. al. This paper was published in the September 10th issue of Science (the scientific journal SCIENCE).