Tag Archives: Intergovernmental Panel on Climate Change

Claim: How the IPCC arrived at climate sensitivity of about 3 deg C instead of 1.2 deg C.

Posted on May 18, 2013 by

Guest essay by Girma Orssengo, PhD 1) IPCC’s 0.2 deg C/decade warming rate gives a change in temperature of dT = 0.6 deg C in 30 years IPCC: “Since IPCC’s first report in 1990, assessed projections have suggested global average … Continue reading →

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Posted in Climate sensitivity, IPCC | Tagged , , , , , , , | 115 Comments

IPCC’s AR5 Frankenscience – bringing proxies back from the dead

Posted on May 11, 2013 by

Josh writes: Steve McIntyre has a hilarious post on the desperate measures needed to get some non peer reviewed papers into the IPCC’s AR5. I am not sure where the phrase ‘Frankenscience’ comes from but it seems appropriate for AR5 which … Continue reading →

Posted in Humor, IPCC, IPCC AR5 leak, Satire | Tagged , | 12 Comments

New NSF paleo research claiming Arctic was warmer fails to take major ocean circulation changes 3 million years ago into account

Posted on May 9, 2013 by

I covered this story earlier today, and it was presented much differently in that press release. This press release takes a different tack. IMHO, it looks like a big “ooops” from the National Science Foundation. See what I found after … Continue reading →

Posted in Arctic, Paleoclimatology | Tagged , , , , , , , | 49 Comments

More ‘ice free Arctic’ claims – we’ve heard it all before

Posted on May 9, 2013 by

From the University of Massachusetts at Amherst, something we’ve heard before. For example this claim from 2008. Gotta love the use of props to show how climate tipping points work: NASA: Arctic Ocean Could be Mostly Ice Free in 2013 … Continue reading →

Posted in Arctic, Sea ice | Tagged , , , , , , , | 71 Comments

Even More about Trenberth’s Missing Heat – An Eye Opening Comment by Roger Pielke Sr.

Posted on May 9, 2013 by

Roger Pielke Sr. was quoted in David Appell’s recent article Whither global warming? Has global warming slowed down? over at the Yale Forum on Climate Change & The Media. That portion of the article reads: About 90 percent of this … Continue reading →

Posted in Ocean Heat Content, Trenberth's missing heats | Tagged , , , , , , | 94 Comments

The effectiveness of CO2 as a greenhouse gas becomes ever more marginal with greater concentration

Posted on May 8, 2013 by

The political target of limiting the effect of Man-made global warming to only +2⁰C can never be attained. Guest essay by Ed Hoskins According to well understood physical parameters, the effectiveness of CO2 as a greenhouse gas diminishes logarithmically with … Continue reading →

Posted in Carbon dioxide, IPCC | Tagged , , , , , , , | 155 Comments

Benchmarking IPCC’s warming predictions

Posted on May 5, 2013 by

By Christopher Monckton of Brenchley The IPCC’s forthcoming Fifth Assessment Report continues to suggest that the Earth will warm rapidly in the 21st century. How far are its projections short of observed reality? A monthly benchmark graph, circulated widely to … Continue reading →

Posted in IPCC | Tagged , , , , , , , | 105 Comments

Monckton asks IPCC for correction to AR4

Posted on May 4, 2013 by

4 May 2013 IPCC Secretariat, Geneva Gentlemen, Request for correction of a serious inaccuracy in the contribution of Working Group 1 to the IPCC’s Fourth Assessment Report   As an Expert Reviewer for the Fifth Assessment Report, 2013, and in … Continue reading →

Posted in IPCC | Tagged , , | 173 Comments

A compilation of lower climate sensitivities, plus a new one

Posted on April 25, 2013 by

Still Another Low Climate Sensitivity Estimate Guest post By Patrick J. Michaels and Paul C. “Chip” Knappenberger Global Science Report is a weekly feature from the Center for the Study of Science, where we highlight one or two important new … Continue reading →

Posted in Climate sensitivity | Tagged , , , , | 60 Comments

The beginning of the end

Posted on April 25, 2013 by

Guest post by Dr. Vincent Gray NZCLIMATE TRUTH NEWSLETTER NO 308 APRIL 25th 2013 I have been neglecting you. Things have quieted down. I am 91 and it is high time I retired, like my friend Will Alexander in South … Continue reading →

Posted in Climate News, Opinion | Tagged , , , | 99 Comments

Some sense about sensitivity

Posted on April 24, 2013 by

Excerpts from The Register, coverage of the Nic Lewis paper. This graph below from Bishop Hill shows that it isn’t just one paper, but several now that show lower climate sensitivity to a doubling of CO2. =============================================================== More and more … Continue reading →

Posted in Climate sensitivity | Tagged , , , | 63 Comments

A Comparison Of The Earth’s Climate Sensitivity To Changes In The Nature Of The Initial Forcing

Posted on April 5, 2013 by

Guest post by Bob Irvine ABSTRACT The Earth’s feedback response to warming is independent of the nature of the forcing that caused that warming. The question I intend to examine is whether the nature of the forcing will have a … Continue reading →

Posted in Climate sensitivity | Tagged , , , , , | 114 Comments

Newsbytes: Britain Blocks Climate Change From G8 Agenda

Posted on March 28, 2013 by

From the GWPF and Dr. Benny Peiser Climate Sceptics Promoted To Key Government Positions The UK’s lead G8 negotiator rejected moves from Germany and France to make climate change a key talking point. Officials from the two countries are said … Continue reading →

Posted in Newsbytes | Tagged , , , , , , | 63 Comments

Categorical Thinking and The Climate Debate

Posted on March 5, 2013 by

Guest post by Craig Loehle, Ph.D. We often hear this disconnect in the climate debate: sceptic Joe says “human impacts are small and likely not harmful”; alarmist Arthur says “humans are affecting the climate, therefore we must act now”. It … Continue reading →

Posted in Opinion | Tagged , , , , , , , | 160 Comments

It’s Time For The Person Who Leaked the CRU Emails To Step Forward

Posted on February 27, 2013 by

Guest post by Dr. Tim Ball It is important for the person who leaked the emails from the Climatic Research Unit (CRU) in November 2009 and 2010 to reveal themselves and release the remaining 200,000 emails. The public are increasingly … Continue reading →

Posted in Climategate, Opinion | Tagged , , , | 169 Comments

Global Warming to Endanger Breakfast by 2080!!!

Posted on February 27, 2013 by

Guest Post by David Middleton First it was wheat and now it’s coffee. What’s next? Bacon & eggs? This is nothing but alarmist nonsense… Researchers at the Royal Botanic Gardens in Kew and the Environment and Coffee Forest Forum in … Continue reading →

Posted in Agriculture, Alarmism, Carbon dioxide, IPCC, James Hansen, Positive effects of CO2, Temperature | Tagged , , , | 61 Comments

IPCC Railroad engineer Pachauri acknowledges ‘No warming for 17 years’

Posted on February 22, 2013 by

Guest post by Christopher Monckton of Brenchley Following my statement at the Doha climate conference last December that there had been no global warming for 16 years, Dr. Rajendra Pachauri, the railroad engineer who for some reason chairs the IPCC’s … Continue reading →

Posted in IPCC | Tagged , , | 294 Comments

It’s the Sun stupid – The minor significance of CO2

Posted on February 20, 2013 by

Guest post by Dr. Norman Page 1 The IPCC’s Core Problem The IPCC  - Al Gore based  Anthropogenic Global Warming scare has driven global  Governments’ Climate and Energy Policies since the turn of the century. Hundreds of billions of dollars have been … Continue reading →

Posted in IPCC, Solar | Tagged , , , , , , , | 268 Comments

It was the best of times, it was [will be] the worst of times.

Posted on February 12, 2013 by

My brother stumbled across an interesting pair of headlines today. Nothing very new, but a nice collection yin and yang. Weather vs climate. Observation vs model. Boom vs bust. First, the yang. WUWT already covered this at Another ‘Vinerism’, or … Continue reading →

Posted in Alarmism, Snow, snowfall | Tagged , , , , , , , , , , | 51 Comments

UV shift in the leaked IPCC report: more inversion of the scientific method

Posted on February 12, 2013 by

Guest post by Alec Rawls A Fox News story on the leaked draft of AR5 got big attention through the Drudge Report the other week. Fox reporter Maxim Lott begins by quoting a sentence from the Second Order Draft that … Continue reading →

Posted in IPCC AR5 leak, Solar | Tagged , , , , , , , , | 83 Comments