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Evaluating a 1981 temperature projection

2 Apr 2012 by group

Guest commentary from Geert Jan van Oldenborgh and Rein Haarsma, KNMI

Sometimes it helps to take a step back from the everyday pressures of research (falling ill helps). It was in this way we stumbled across Hansen et al (1981) (pdf). In 1981 the first author of this post was in his first year at university and the other just entered the KNMI after finishing his masters. Global warming was not yet an issue at the KNMI where the focus was much more on climate variability, which explains why the article of Hansen et al. was unnoticed at that time by the second author. It turns out to be a very interesting read.
[Read more…] about Evaluating a 1981 temperature projection

References

  1. J. Hansen, D. Johnson, A. Lacis, S. Lebedeff, P. Lee, D. Rind, and G. Russell, "Climate Impact of Increasing Atmospheric Carbon Dioxide", Science, vol. 213, pp. 957-966, 1981. http://dx.doi.org/10.1126/science.213.4511.957

Filed Under: Climate modelling, Climate Science, Greenhouse gases, Instrumental Record

Unforced variations: April 2012

2 Apr 2012 by group

This month’s open thread – a day late for obvious reasons… Have at it.

Filed Under: Climate Science, Open thread

Sherwood Rowland, CFCs, ozone depletion and the public role of scientists

13 Mar 2012 by group

Many of you will have read the obituaries of the Nobel Prize-winning chemist Sherwood Rowland (Nature, BBC) who sadly died over the weekend. DotEarth has a good collection of links to papers, videos and tributes.
[Read more…] about Sherwood Rowland, CFCs, ozone depletion and the public role of scientists

Filed Under: Climate Science, Greenhouse gases

Unforced Variations: March 2012

1 Mar 2012 by group

This month’s open thread – for appetizers we have: William Nordhaus’s extremely impressive debunking in the NY Review of Books of the WSJ 16 letter and public polling on the issue of climate change. Over to you…

Filed Under: Climate Science, Open thread

Bickmore on the WSJ response

24 Feb 2012 by group

Guest commentary from Barry Bickmore (repost)

The Wall Street Journal posted yet another op-ed by 16 scientists and engineers, which even include a few climate scientists(!!!). Here is the editor’s note to explain the context.

Editor’s Note: The authors of the following letter, listed below, are also the signatories of“No Need to Panic About Global Warming,” an op-ed that appeared in the Journal on January 27. This letter responds to criticisms of the op-ed made by Kevin Trenberth and 37 others in a letter published Feb. 1, and by Robert Byer of the American Physical Society in a letter published Feb. 6.

A relative sent me the article, asking for my thoughts on it. Here’s what I said in response.
[Read more…] about Bickmore on the WSJ response

Filed Under: Climate modelling, Climate Science, Instrumental Record, IPCC

So What’s A Teacher to Do?

4 Feb 2012 by group

Guest Commentary by Eugenie Scott, National Center for Science Education

Imagine you’re a middle-school science teacher, and you get to the section of the course where you’re to talk about climate change. You mention the “C” words, and two students walk out of the class.

Or you mention global warming and a hand shoots up.

“Mrs. Brown! My dad says global warming is a hoax!”

Or you come to school one morning and the principal wants to see you because a parent of one of your students has accused you of political bias because you taught what scientists agree about: that the Earth is getting warmer, and human actions have had an important role in this warming.

Or you pick up the newspaper and see that your state legislature is considering a bill that declares that accepted sciences like global warming (and evolution, of course) are “controversial issues” that require “alternatives” to be taught.
[Read more…] about So What’s A Teacher to Do?

Filed Under: Climate Science

Unforced Variations: February 2012

1 Feb 2012 by group

This month’s open thread. Current topics are focused on the laughingly bad Daily Mail article by David Rose, the fallout from the Wall Street Journal’s latest regurgitation of why no-one should ever do anything ever. And perhaps someone might want to audit some of David Whitehouse’s arithmetic and reading comprehension…

Or anything else. Within reason.

Filed Under: Climate Science, Open thread

“Vision Prize”, an online poll of scientists about climate risk

22 Jan 2012 by group

A group of researchers at Carnegie Mellon University is trying to get a better understanding of the views of earth scientists regarding various climate change topics. They have set up an ongoing poll to do this, called Vision Prize. It’s a short (10 question) poll, covering topics like the rate of CO2 increase, predicted future temperatures, sea ice and sea level states, and hurricane frequencies. Early participants can designate a $20 donation from the group to a charity of their choice, upon completion. Please take a few minutes to help them out if qualified.

Filed Under: Climate Science

Unforced variations: Jan 2012

2 Jan 2012 by group

First open thread of 2012, so perhaps some discussion of the highlights and lowlights of 2011 are in order? Top 5 lists welcome…

Filed Under: Climate Science, Open thread

Climate cynicism at the Santa Fe conference

19 Dec 2011 by group

Guest commentary by Mark Boslough*

The Third Santa Fe Conference on Global and Regional Climate Change was held during Halloween week. It was most notable for the breadth of opinion — and the span of credibility — of its speakers. I have long complained about the lack of willingness of most contrarians to attend and present their arguments at mainstream scientific conferences. After three years of convening climate-related sessions at AGU, I have yet to receive an abstract that argues against anthropogenic global warming. Such presentations can usually only be seen at conferences held by the Heartland Institute. There isn’t much chance of a mainstream scientist attending a meeting organized by a political think tank known for its anti-science activism, so opportunities for interaction between the groups are rare.
[Read more…] about Climate cynicism at the Santa Fe conference

Filed Under: Climate Science

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