Note: Steve McIntyre is also quite baffled by the Marcott et al paper, finding it currently unreproducible given the current information available. I’ve added some comments from him at the…
Tag: Holocene
Validity of Marcott et al. PART II
Validity of Marcott et al. contention that “Global temperatures are warmer than at any time in at least 4,000 years” and “Global temperature….. has risen from near the coldest to…
A Simple Test of Marcott et al., 2013
Guest Post by David Middleton The Gorebots are all atwitter about this new paper… Science 8 March 2013: Vol. 339 no. 6124 pp. 1198-1201 DOI: 10.1126/science.1228026 A Reconstruction of Regional…
Validity of “A Reconstruction of Regional and Global Temperature for the Past 11,300 Years”
It seems that Marcott et al isn’t all that it is cracked up to be. Dr. Easterbrook takes a good hard look at the paper. Guest post by Dr. Don…
Marcott et al claim of 'unprecedented' warming compared to GISP ice core data
The very first sentence of the Marcott et al (which is getting heavy press) abstract says: Surface temperature reconstructions of the past 1500 years suggest that recent warming is unprecedented…
New study: Ocean-driven warming along the western Antarctic Peninsula needs to be considered as part of a natural centennial timescale cycle of climate variability
From Cardiff University: Tiny fossils hold answers to big questions on climate change Research explores 12,000 year fossil record The western Antarctic Peninsula is one of the fastest warming regions…
Now if we could only get them to stop using the "D" word, they might actually communicate better
From the University of Missouri: Public Acceptance of Climate Change Affected by Word Usage, Says MU Anthropologist Better science communication could lead to a more informed American public. Public acceptance…
New paper demonstrates that climate responds to short and long-term changes in solar activity
(Via the Hockey Schtick) A new peer reviewed paper published in The Holocene finds a significant link between solar activity and climate over the past 1000 years. According to the…
On certainty: Truth is the Daughter of Time
This comment from Dr. Robert Brown at Duke University is elevated from a comment to a full post for further discussion. Since we have a new paper (Shepherd et al)…
Claim: Five climate-forcing mechanisms govern 20,000 years of climate change
FOREWORD: I don’t agree with many of the claims made in this paper, particularly the retrograde tri-synodic Jupiter/Saturn cycle claims. This is not a peer reviewed paper. That said, I’m willing…
Can we predict the duration of an interglacial?
Perspective by William McClenney on the paper of the same title by: P. C. Tzedakis, E.W. Wolff, L. C. Skinner, V. Brovkin, D. A. Hodell, J. F. McManus, and D.…
Onset of the Next Glaciation
Guest post by David Archibald Baby boomers like me have enjoyed the most benign period in human history. The superpower nuclear standoff gave us fifty years of relative peace, we…
F10.7 Flux, Sea Level and the Holocene
Guest post by David Archibald George Orwell said,” He who controls the present, controls the past. He who controls the past, controls the future.” Some amongst us have used that…
Paper demonstrates solar activity was at a grand maximum in the late 20th century
Solar activity measured by isotope proxies revealed the end of 20th century was the highest activity in 1200 years A 2010 paper (that I somehow missed) was recently highlighted by…
Wild Speculation on Climate and Polar Bears
By Dr. Pat Michaels at World Climate Report, reposted with permission. Here is another big one from PNAS. For those who don’t know, PNAS stands for the Proceedings of the…
HH Lamb–“Climate: Present, Past & Future–Vol 2”–In Review–Part I
Guest post by Paul Homewood (reposted from his blog Not a lot of people know that please visit and bookmark) Part 1 of a three part series. Hubert Lamb was…
A response to Dr. Paul Bain's use of 'denier' in the scientific literature
Note: This will be the top post for a day or two, new posts will appear below this one. Readers may recall my original post, Nature’s ugly decision: ‘Deniers’ enters…
Study shows the Arctic was much colder while Earth was warmer during Eemian warm period
Warm Climate – Cold Arctic? The Eemian is a poor analogue for current climate change 12.06.2012/Kiel. The Eemian interglacial period that began some 125,000 years ago is often used as…
The longest, most high resolution, most inconvenient paleoclimate data that hasn't been published
Read on for a new Josh cartoon. What’s wrong with this image? Well if you are part of The Team (RealClimate and friends), it goes against everything you’ve been publishing.…
Mann's secret hot sauce
Steve McIntyre finds yet another instance where Mann applies his special “secret hot sauce” to data, selling the sizzle, rather than the steak. It is another familiar tale of data…
Solar grand minima linked to cooling period in Europe
This is interesting. A quick cooling in Europe together with an increase in humidity and particularly in windiness was found to coincide with a long-term reduction in solar activity 2800…
Does CO2 correlate with temperature history? – A look at multiple timescales in the context of the Shakun et al. paper
Guest post by Michael Pacnik Especially in the context of recent discussion of the Shakun et al. paper, a look at other sources for temperature history versus CO2 can be…
Dusting for Fingerprints in the Holocene
Guest Post by David Middleton Fingerprints are admissible evidence in criminal trials because of their uniqueness. The probability of two human beings having identical fingerprints is very low. Measurements of…
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