Iron is a vital nutrient for marine life and plays a significant role in regulating atmospheric carbon dioxide by influencing the growth of phytoplankton, which absorb carbon dioxide.
Category: Paleoclimatology
Study: Ocean sediments support theory that comet impact triggered Younger Dryas cool-off
Analysis of ocean sediments has surfaced geochemical clues in line with the possibility that an encounter with a disintegrating comet 12,800 years ago in the Northern Hemisphere triggered rapid cooling…
Surprise! Study says Late Jurassic CO2 was 1,200 ppm, dipped to 750 ppm in the Cretaceous
A previously untapped source of data sheds new light on the climate of the early Earth: fossilized dinosaur teeth show that the atmosphere during the Mesozoic era, between 252 and…
The Transylvanian Climate Story
Such weather variations often resulted in catastrophes, related directly or indirectly to the climate. These included 30 years during which the Black Death ravaged the land, 23 years or famine,…
New Study: The Arctic Was 9°C Warmer Than Today During the Holocene Thermal Maximum
Holocene (11,700 to 8,200 years ago) Arctic (Svalbard) temperatures “were up to 9°C higher than today” according to the authors of a new Nature journal study. At that time CO2 was thought to…
Earth’s Energy Imbalance – Part III
This final part of the series explores the issue of regulation of Earth’s climate in light of a small, continuing imbalance between energy input from Sol, and outgoing LWIR –…
The Bray Solar Cycle and AMO
By Andy May My last post on the AMO and HadCRUT5 generated some interest and some criticism. As I explained, there are two common methods of computing the AMO index.…
Study: Ancient Megafloods Dwarf Today’s Extremes — But You Won’t Hear That on the Evening News
Paleoclimate records reveal prehistoric floods that far exceed anything we see today — undermining claims that modern flooding is “unprecedented” or driven solely by climate change.
Plate Tectonics and Climate during the Cenozoic
By Andy May In this post I examine the proxies used to compare CO2 to temperature from 66 million years ago (Ma) until today and comment on the quality of…
Celestial Driver for Middle Miocene Cooling?
Earth’s transit of the “Radcliffe Wave” may have been a significant driver of Middle Miocene climate change.
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,…
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