Dust in ice cores leads to new knowledge on the advancement of the ice before the ice age

University of Copenhagen Ice core research: Researchers from the section Physics of Ice, Climate and Earth (PICE) at the Niels Bohr Institute, University of Copenhagen, have succeeded in making a method to enlighten an otherwise dark period in climate history. Working with the ice core ReCap, drilled close to the coast in East Greenland, postdoc…

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Auroral Evidence of Upcoming Mini or Little Ice Age?

Guest Opinion; Dr. Tim Ball A recent article in the British newspaper The Express titled, “Northern Lights in the UK: Can you watch Aurora Borealis from UK? Where can you see it?” raises interesting questions and comparisons with historical events. It also appears to reinforce the climate forecasts for the next few decades. Source: Daily…

‘True polar wander’ may have caused ice age

From Phys.org   November 19, 2018, Rice University Earth’s latest ice age may have been caused by changes deep inside the planet. Based on evidence from the Pacific Ocean, including the position of the Hawaiian Islands, Rice University geophysicists have determined Earth shifted relative to its spin axis within the past 12 million years, which…

Why did the buffalo cross the land bridge?

To get to the other side… Guest post by David Middleton “There has long been a controversy about the timing of bison arrival in North America,” said Shapiro. Bison arrival in North America marks the beginning of what geologists call the “Rancholabrean Land Mammal Age,” which is used to discriminate between different ecological periods in…

The Warmer The Icier Part II

Guest Post by Willis Eschenbach In the first part of this disquisition, I discussed the oddity that the warmer it gets around Antarctica, the more ice accumulates on the Antarctic ice cap. However, that’s only one part of a very large planet. So I thought I’d take a look at the situation in Greenland. To…

The Icebox Heats Up

Guest Post by Willis Eschenbach Well, either it’s a genetic defect or I’m just a glutton for punishment, but I’m going to delve some more into the ice ages. This is a followup to my previous post, Into and Out Of The Icebox. Let me start by looking at the cycles in the insolation and…

Into and Out of the Icebox

Guest Post by Willis Eschenbach Inspired by a random comment by Steve McIntyre over at his marvelous blog Climate Audit, I got to thinking about the ice ages. I’ve long heard that the ice ages are caused by the changes in summer insolation in the northern hemisphere. As the story goes, the Milankovitch cycles of…