Earth’s transit of the “Radcliffe Wave” may have been a significant driver of Middle Miocene climate change.
Category: Paleoclimatology
7000-Year-Old Trees Uncovered High Up In The Rockies
The paper incorrectly claims that recent warming is a new phenomenon, but provides no data to back this up. However many tree line studies have conclusively shown that tree lines…
Climate Change over the past 4000 Years
By Andy May I last wrote about Climate Change and Civilization for the past 4,000 Years in 2016. Since then, a lot has changed, and I’ve learned a lot more…
The Geological Record of Climate Change and Why Today’s Increase in Atmospheric CO2 Is the Result of Global Warming, Not the Cause
The climate is changing, and the geological record of climate change clearly shows that (a) we live in an unusually cold climate, (b) recent warming is neither dangerous or unusual,…
Is Paleoclimate Cyclic? It’s a Mystery to Me
In about 120 million years we will finally cross the Sagittarius spiral arm. We will exit this Ice House with its periodic glacial ages and enter the next Hot House…
MSM Journos Inadvertently Reveal Shocking Truth About Global Warming
Maybe, just maybe, the level of human-caused global warming doom porn pushed by the Government, corporate media outlets, global NGOs and far-Left billionaires is not as apocalyptic as they make…
Ockham’s View of Cenozoic CO2
The solubility of CO2 is temperature-dependent. The existence of both a paleo-SST record and a paleo-CO2 record brought to mind the possibly that the rise and fall of SST was…
The modern rate of sea level rise is not even close veering outside the range of natural variability.
A new study reminds us that, 8200 years ago, near-global sea levels rose 6.5 meters in a span of just 140 years. This is 470 centimeters per century, 4.7 centimeters…
The Pacific Ocean Was As Warm 600 Years Ago
An international team of climate scientists have used a 627-year coral record from Fiji to reveal unprecedented insights into ocean temperatures and climate variability across the Pacific Ocean since 1370.
Causality Analysis Finds Temperature Changes Have Determined CO2 Changes Since The Phanerozoic
The author has had a series of peer-reviewed scientific papers published supporting this same T→CO2 conclusion (Koutsoyiannis et al., 2022, Koutsoyiannis et al., 2020, Koutsoyiannis et al., 2023, Koutsoyiannis, 2024,…
Discovery of 2-million-year-old DNA in Greenland reveals new details about ancient life
.PBS NewsHour Here is the transcript JUDY WOODRUFF: Scientists working in Greenland have identified the oldest samples of DNA ever found on Earth. By analyzing this two-million-year-old genetic material, they…
Reminder: Historical Natural Warming Rates Dwarf Modern Climate Change
From 80,000 to 20,000 years ago Greenland warmed by 10-15 Kelvin within a span of “a few decades” 24 times (Kypke and Ditlevsen 2024).
#ShowYourStripes Day – But we have the real one
By Anthony Watts and Charles Rotter According to several sources, #ShowYourStripes is a global campaign to spread awareness about climate change using warming stripes graphics. The iconic blue and red…
Cycles in Earth’s Climate – Part 1: The Trend Setters
The last 7kyr has been a relatively benign period in Earth’s climate with minor excursions in sea level and surface temperature compared with what will be observed over the next…
Newly Discovered 90,000-Year-Old Human Footprints Reveal How Much Higher Sea Levels Used To Be
Evidence along the coasts of North Africa (Morocco) suggests sea levels were “20 m above the present level” about 95,000 years ago (MIS 5c).
With Tree Rings On Their Fingers
But how do we actually know, and how much do we actually know, about historic and prehistoric temperatures? In this Climate Discussion Nexus “Backgrounder” video John Robson examines the uses,…
Comprehensive Russian Temperature Reconstruction Shows Warmer Temperatures 1000 Years Ago!
Result: it was modestly warmer 1000 years ago than it is today.
MWP 1.5C Warmer Than 1900–Says HH Lamb
Generally speaking we are looking at Medieval temperatures between 1.0C and 1.5C higher than in 1900.
The Holocene Climatic Optimum and the “pre-industrial”
By Andy May The “pre-industrial” according to the IPCC in a footnote on page 43 of AR6 WGI is prior to 1750 for radiative forcings and before 1850 for temperature.…
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