Short Takes — 19

Short Takes: The evidence accumulates that the “Climate Sensitivity” estimate in our models is BADLY off.

Source: “A 485-million-year history of Earth’s surface temperature”, E.J. Judd et al. Temperatures are averages for geological periods. Shaded area shows values with a 68% probability.

On new papers.

A new paper, “A 485-million-year history of Earth’s surface temperature” dropped today. It’s NOT good news.

A 485-million-year history of Earth’s surface temperature.

Science, 20 Sep 2024, Vol 385, Issue 6715, DOI: 10.1126/science.adk3705

It has been written up already by WAPO and the NYT.

Scientists have captured Earth’s climate over the last 485 million years. Here’s the surprising place we stand now.

An effort to understand Earth’s past climates uncovered a history of wild temperature shifts and offered a warning on the consequences of human-caused warming.

Prehistoric Earth Was Very Hot. That Offers Clues About Future Earth. — NYT 9/19/24

At times during the past half-billion years, carbon dioxide warmed our planet more than previously thought, according to a new reconstruction of Earth’s deep past.

From the paper:

Understanding how global mean surface temperature (GMST) has varied over the past half-billion years, a time in which evolutionary patterns of flora…