The anatomy of past abrupt warmings recorded in Greenland ice

Data availability and temporal resolution make it challenging to unravel the anatomy (duration and temporal phasing) of the Last Glacial abrupt climate changes. Here, we address these limitations by investigating…

Ocean temperature reconstructed over the last 700,000 years

Bern’s ice core researchers were already able to demonstrate in 2008 how the concentration of CO2 in the atmosphere has changed over the past 800,000 years. Now, using the same…

Poop core records 4,300 years of bat diet and environment

“As a piece of work showing what you can do with poo, this study breaks new ground,” said Michael Bird, a researcher in environmental change in the tropics at James…

PAGES 12K: The Ice Age Goeth

Guest “damning with faint praise” by David Middleton Kaufman, Mckay, Routson, et al., 2020 In my previous post, I noted a “funny pattern” in the latest Holocene climate reconstruction (Kaufman,…

PAGES 12K… A funny thing happened on the way to the Anthropocene!

Guest “A funny thing happened on the way to the Anthropocene” by David Middleton I’ve been studying a recent Holocene climate reconstruction (Kaufman, D., McKay, N., Routson, C. et al., 2020)……

Its a Bit more Complicated

The plant matter stuff reported in PNAS is obviously true. So Greenland did mostly melt about 1 mya; otherwise those plants could not have existed there then, however briefly. But…

Tree Remnants Show Greta’s Thunberg’s Northern Sweden Was 3°C Warmer 9300 Years Ago…Trees Where There’s Tundra

9300-year old vegetation remnants found under receding glaciers in Northern Sweden show that the trees once grew where tundra exists today, meaning it was warmer.

Claim: Important climate change mystery solved by scientists

The long-standing mystery is called the “Holocene temperature conundrum,” with some skeptics contending that climate model predictions of future warming must be wrong. The scientists say their findings will challenge…

Past river activity in northern Africa reveals multiple Sahara greenings

“By combining the sediment analyses with results from our computer simulation, we can now precisely understand the climatic processes at work to explain the drastic changes in North African environments…

Claim: Climate and carbon cycle trends of the past 50 million years reconciled

Predictions of future climate change require a clear and nuanced understanding of Earth’s past climate. In a study published today in Science Advances, University of Hawai’i (UH) at Mānoa oceanographers…

Woolly mammoths may have lived thousands of years after supposed extinction

Scientists have discovered the DNA of some 2,100 kinds of plants and 180 animals — including American horses and woolly mammoths – dating to thousands of years after their supposed…

Proof Of Warmer Earlier Climate! Swiss Geologist Studies 10,800-Year Old Tree Trunk Under Alps Glacier

Previously hidden under a Swiss glacier, a 10,800-year old tree trunk was discovered and tells us the Alps were much warmer in the early Holocene than today.

Michael Mann’s 2008 Reconstruction

By Andy May In my last post, it was suggested that Michael Mann’s 2008 reconstruction (Mann, et al., 2008) was similar to Moberg’s 2005 (Moberg, Sonechkin, Holmgren, Datsenko, & Karlen,…

Climate change caused mangrove collapse in Oman

A current study of the University of Bonn (Germany) now sheds light on this: It indicates that the collapse of coastal ecosystems was caused by climatic changes. In contrast, falling…

Huge Database Of Studies Documenting Meters-Higher Mid-Holocene Sea Levels Swells Again In 2020

During the Mid-Holocene sea surface temperatures were also considerably warmer despite CO2 levels only reaching ~265 ppm. Yet at that time sea levels were about 2 or more meters higher…

Researchers discover a new tool for reconstructing ancient sea ice

In a study published in Nature Communications, the researchers show that an organic molecule often found in high-latitude ocean sediments, known as tetra-unsaturated alkenone (C37:4), is produced by one or…

Largest study of Asia’s rivers unearths 800 years of paleoclimate patterns

813 years of annual river discharge at 62 stations, 41 rivers in 16 countries, from 1200 to 2012. That is what researchers at the Singapore University of Technology and Design…

New Evidence That the Ancient Climate Was Warmer than Today’s

Two recently published studies confirm that the climate thousands of years ago was as warm or warmer than today’s – a fact disputed by some believers in the narrative of…

Eastern Alps may have been ice-free in the time of Ötzi the Iceman

Glaciers in the Ötztal Alps in Austria are currently melting and may be lost within two decades, but this might not be the first time humans have seen this kind…

Modern Iceland’s Climate Is Colder With More Ice Than Any Other Time In The Last 8000 Years Except The 1800s

A wealth of new research in glacier and sea ice extent show modern Iceland is 2-4°C colder than all of the last 8000 years except for a slightly colder late…

NSF-funded deep ice core to be drilled at Hercules Dome, Antarctica

Antarctica’s next deep ice core, drilling down to ice from 130,000 years ago, will be carried out by a multi-institutional U.S. team at Hercules Dome, a location hundreds of miles…

New Paleoclimatology Finding Shows Earth’s Climate Was Typically Warmer than Today

Guest essay by H. Sterling Burnett, originally published on ClimateRealism.com Archaeologists have published a new paper in The Holocene, DOI: 10.1177/0959683620972775 that confirms what previous research has shown: numerous periods during recent history…

How ancient dust from the sea floor helps to explain climate history

During the last Ice Age about 20,000 years ago, iron-containing dust acted as a fertilizer for marine phytoplankton in the South Pacific, promoting CO2 sequestration and thus the glacial cooling…

New study to uncover how climate change and tectonics drove evolution in East Africa

The whale fossil represents a massive change from the Miocene to today in Kenya’s Turkana Basin, as the fossil of this sea animal was originally found 740 miles inland and…