Tag Archives: Ice core

New ice core record shows climate variability in West Antarctica

Similar warming and cooling trends occurred in the mid-nineteenth and eighteenth centuries From AGU highlights: A 308-year ice core record provides new data on climate variability in coastal West Antarctica and shows that a clear warming trend has occurred in … Continue reading

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Posted in Antarctic, Paleoclimatology | Tagged , , , , , , , | 31 Comments

The oldest ice core – Finding a 1.5 million-year record of Earth’s climate

How far into the past can ice-core records go? Scientists have now identified regions in Antarctica they say could store information about Earth’s climate and greenhouse gases extending as far back as 1.5 million years, almost twice as old as … Continue reading

Posted in Antarctic, Paleoclimatology | Tagged , , | 119 Comments

Recent climate, glacier changes in Antarctica at the ‘upper bound’ of normal

From the University of Washington some walkback? In the last few decades, glaciers at the edge of the icy continent of Antarctica have been thinning, and research has shown the rate of thinning has accelerated and contributed significantly to sea … Continue reading

Posted in Antarctic | Tagged , , , , | 49 Comments

Will Lonnie Thompson archive THIS new ice core data?

UPDATE  – 4/7/13 At the time I wrote this post, April 4th 11:45AM, at ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/trop/quelccaya/ there was a placeholder file quelccaya2013.txt reading then: “# Data will be added to this file upon publication of Thompson et al. 2013 Science” It … Continue reading

Posted in Paleoclimatology | Tagged , , , , | 129 Comments

AGW Proponents Fight Rearguard Action As Political Climate Science Fails

Guest post by Dr. Tim Ball Proponents of the anthropogenic global warming (AGW) hypothesis are cornered. They made a political choice to prove rather than disprove the hypothesis, as the scientific method requires. It failed, as IPCC projections (range of … Continue reading

Posted in Marcott et al proxy paper, Opinion | Tagged , , , , , , , | 64 Comments

First complete ice core record of last interglacial period shows the climate of Greenland to be significantly warmer than today

Study: ‘ Greenland ice sheet is not as sensitive to temperature increases and to ice melting and running out to sea in warm climate periods ‘. From the University of Copenhagen Greenland ice cores reveal warm climate of the past … Continue reading

Posted in Greenland ice sheet, Paleoclimatology | Tagged , , , , , , , | 124 Comments

Does The Effect From The Cause Affect The Cause?

Guest Post by Willis Eschenbach There’s been a recent paper claiming a long-term correlation between CO2 and sea level, discussed here at WUWT. The paper implies that CO2 controls temperature and thus indirectly sea level. I thought I might follow … Continue reading

Posted in Antarctic, Climate sensitivity | Tagged , , , , , , | 142 Comments

Shakun The Last, I Hope

Guest Post by Willis Eschenbach In three previous posts here, here, and here, I discussed problems with the paper by Shakun et al., “Global warming preceded by increasing carbon dioxide concentrations during the last deglaciation” (PDF,hereinafter S2012) Commenters said, and … Continue reading

Posted in Paleoclimatology, Proxies | Tagged , , , , , , , , | 84 Comments

Did Shakun et al. really prove that CO2 preceded late glacial warming? [Part 1]

By Don J. Easterbrook, PhD. In a paper “Global warming preceded by increasing carbon dioxide concentrations during the last deglaciation”, Shakun et al.(Nature 2012) contend that rising temperature at the end of the last Pleistocene glaciation were preceded by increasing … Continue reading

Posted in Paleoclimatology | Tagged , , , , , , , | 130 Comments

Shakun Redux: Master tricksed us! I told you he was tricksy!

Guest Post by Willis Eschenbach The quote above is from Lord of the Rings, an exchange between Gollum and Smeagol, and it encapsulates my latest results from looking into the Shakun 2012 paper, “Global warming preceded by increasing carbon dioxide … Continue reading

Posted in Alarmism, Antarctic, Carbon dioxide, Paleoclimatology, Proxies | Tagged , , , , , , , | 338 Comments

A reply to Shakun et al – Dr. Munchausen Explains Science By Proxy

Guest Post by Willis Eschenbach There’s a new study entitled “Global warming preceded by increasing carbon dioxide concentrations during the last deglaciation”, Shakun et al. (paywalled, hereinafter Shakun2012). The paper claims to show that in the warming since the last … Continue reading

Posted in Alarmism, Paleoclimatology, Proxies | Tagged , , , , , , , , | 193 Comments

Rebuttal to the Skeptical Science “Crux of a Core”

Guest post by Dr. J Storrs Hall A bit over a year ago, in the wake of Climategate, I put up a blog post over at the Foresight Institute which got picked up and run here at WUWT.  The essence … Continue reading

Posted in Paleoclimatology | Tagged , , , | 208 Comments

Easterbrook on the magnitude of Greenland GISP2 ice core data

MAGNITUDE AND RATE OF CLIMATE CHANGES Guest post by Dr. Don J. Easterbrook, Dept. of Geology, Western Washington University The GISP2 Greenland ice core has proven to be a great source of climatic data from the geologic past. Ancient temperatures … Continue reading

Posted in Paleoclimatology | Tagged , , , , , | 132 Comments

2010 – where does it fit in the warmest year list?

Guest post by Dr. Don J. Easterbrook 1934 has long been considered the warmest year of the past century. A decade ago, the closest challenger appeared to be 1998, a super-el nino year, but it trailed 1934 by 0.54°C (0.97°F). … Continue reading

Posted in Paleoclimatology | Tagged , , | 356 Comments