• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

RealClimate

Climate science from climate scientists...

  • Start here
  • Model-Observation Comparisons
  • Miscellaneous Climate Graphics
  • Surface temperature graphics
You are here: Home / Archives for Gavin

about Gavin Schmidt

Gavin Schmidt is a climate modeler, working for NASA and with Columbia University.

Getting things right

20 Jan 2011 by Gavin

Last Monday, I was asked by a journalist whether a claim in a new report from a small NGO made any sense. The report was mostly focused on the impacts of climate change on food production – clearly an important topic, and one where public awareness of the scale of the risk is low. However, the study was based on a mistaken estimate of how large global warming would be in 2020. I replied to the journalist (and indirectly to the NGO itself, as did other scientists) that no, this did not make any sense, and that they should fix the errors before the report went public on Thursday. For various reasons, the NGO made no changes to their report. The press response to their study has therefore been almost totally dominated by the error at the beginning of the report, rather than the substance of their work on the impacts. This public relations debacle has lessons for NGOs, the press, and the public.
[Read more…] about Getting things right

Filed Under: Climate Science, Greenhouse gases

Reflections on funding panels

7 Jan 2011 by Gavin

Despite what is often claimed, climate scientists aren’t “just in it for the money”. But what scientists actually do to get money and how the funding is distributed is rarely discussed. Since I’ve spent time as a reviewer and on a number of panels for various agencies that provide some of the input into those decisions, I thought it might be interesting to discuss some of the real issues that arise and the real tensions that exist in this process. Obviously, I’m not going to discuss specific proposals, calls, or even the agencies involved, but there are plenty of general insights worth noting.
[Read more…] about Reflections on funding panels

Filed Under: Climate Science, Scientific practice

One year later

20 Nov 2010 by Gavin

I woke up on Tuesday, 17 Nov 2009 completely unaware of what was about to unfold. I tried to log in to RealClimate, but for some reason my login did not work. Neither did the admin login. I logged in to the back-end via ssh, only to be inexplicably logged out again. I did it again. No dice. I then called the hosting company and told them to take us offline until I could see what was going on. When I did get control back from the hacker (and hacker it was), there was a large uploaded file on our server, and a draft post ready to go announcing the theft of the CRU emails. And so it began.

From that Friday, and for about 3 weeks afterward, we were drafted into the biggest context setting exercise we’d ever been involved in. What was the story with Soon and Baliunas? What is the difference between tree ring density and tree ring width? What papers were being discussed in email X? What was Trenberth talking about? Or Wigley? Or Briffa or Jones? Who were any of this people anyway? The very specificity of the emails meant that it was hard for the broader scientific community to add informed comment, and so the burden on the people directly involved was high.

The posts we put up initially are still valid today – and the 1000’s of comment stand as testimony to the contemporary fervour of the conversation:

  • The CRU Hack
  • The CRU Hack: Context
  • Where’s the Data?
  • The CRU Hack: More Context

I think we did pretty well considering – no other site, nor set of scientists (not even at UEA) provided so much of the background to counter the inevitable misinterpretations that starting immediately spreading. While some commentators were predicting resignations, retractions and criminal charges, we noted that there had not been any scientific misconduct, and predicted that this is what the inquiries would find and that the science would not be affected. (Note, the most thorough inquiry, and one that will have to withstand judicial review, is the one by EPA which, strangely enough, has barely been discussed in the blogosphere).

Overall, reactions have seemed to follow predictable lines. The Yale Forum has some interesting discussions from scientists, and there are a couple of good overviews available. Inevitably perhaps, the emails have been used to support and reinforce all sorts of existing narratives – right across the spectrum (from ‘GW hoaxers’ to Mike Hulme to UCS to open source advocates).

Things have clearly calmed down over the last year (despite a bit of a media meltdown in February), but as we predicted, no inquiries found anyone guilty of misconduct, no science was changed and no papers retracted. In the meantime we’ve had one of the hottest years on record, scientists continue to do science, and politicians…. well, they continue to do what politicians do.

Filed Under: Climate Science, Communicating Climate

Science, narrative and heresy

3 Nov 2010 by Gavin

Recent blog discussions have starkly highlighted the different values and priorities for scientists, bloggers and (some parts) of the mainstream media.
[Read more…] about Science, narrative and heresy

Filed Under: Climate Science

Solar spectral stumper

7 Oct 2010 by Gavin

It’s again time for one of those puzzling results that if they turn out to be true, would have some very important implications and upset a lot of relatively established science. The big issue of course is the “if”. The case in question relates to some results published this week in Nature by Joanna Haigh and colleagues. They took some ‘hot off the presses’ satellite data from the SORCE mission (which has been in operation since 2003) and ran it through a relatively complex chemistry/radiation model. These data are measurements of how the solar output varies as a function of wavelength from an instrument called “SIM” (the Spectral Irradiance Monitor).
[Read more…] about Solar spectral stumper

Filed Under: Climate modelling, Climate Science, Sun-earth connections

IPCC report card

30 Aug 2010 by Gavin

Update: Nature has just published a thoughtful commentary on the report

The Inter-Academy Council report on the processes and governance of the IPCC is now available. It appears mostly sensible and has a lot of useful things to say about improving IPCC processes – from suggesting a new Executive to be able to speak for IPCC in-between reports, a new communications strategy, better consistency among working groups and ideas for how to reduce the burden on lead authors in responding to rapidly increasing review comments.

As the report itself notes, the process leading to each of the previous IPCC reports has been informed from issues that arose in previous assessments, and that will obviously also be true for the upcoming fifth Assessment report (AR5). The suggestions made here will mostly strengthen the credibility of the next IPCC, particularly working groups 2 and 3, though whether it will make the conclusions less contentious is unclear. Judging from the contrarian spin some are putting on this report, the answer is likely to be no.

Filed Under: Climate Science, IPCC

Information levels

10 Jul 2010 by Gavin

Rasmus’ recent post on the greenhouse effect raised some interesting points concerning the technical level at which posts or other public communications should be written. This was a relatively technical article as these things go, eschewing the very basic ‘the greenhouse effect is like a blanket’ but not really approaching the level of a technical paper on the subject (no line-by-line calculations for instance). Nonetheless, there were complaints that was too much to be absorbed by the lay public, counter-arguments that making it too simple was patronising, as well as complaints that the discussions were not technical enough (for instance in explaining stratospheric cooling). In these discussions there are clearly the outlines of a common debate, and perhaps a way forward in the future.

[Read more…] about Information levels

Filed Under: Climate Science, Communicating Climate

The uncertainty prayer

29 Jun 2010 by Gavin

Seen at a meeting yesterday:


Grant us…
The ability to reduce the uncertainties we can;
The willingness to work with the uncertainties we cannot;
And the scientific knowledge to know the difference.

(Drawn from a white paper on the use of climate models for water managers).

Discuss.

Filed Under: Climate Science

What do climate scientists think?

24 Jun 2010 by Gavin

by Gavin and Eric.

… and why does it matter?

Una traducción en español está disponible aquí.
[Read more…] about What do climate scientists think?

Filed Under: Climate Science, skeptics

Leakegate: A retraction

20 Jun 2010 by Gavin

Back in February, we commented on the fact-free IPCC-related media frenzy in the UK which involved plentiful confusion, the making up of quotes and misrepresenting the facts. Well, a number of people have pursued the newspapers concerned and Simon Lewis at least filed a complaint (pdf) with the relevant press oversight body. In response, the Sunday Times (UK) has today retracted a story by Jonathan Leake on a supposed ‘Amazongate’ and published the following apology:

The article “UN climate panel shamed by bogus rainforest claim” (News, Jan 31) stated that the 2007 Intergovernmental Panel on Climate Change (IPCC) report had included an “unsubstantiated claim” that up to 40% of the Amazon rainforest could be sensitive to future changes in rainfall. The IPCC had referenced the claim to a report prepared for the World Wildlife Fund (WWF) by Andrew Rowell and Peter Moore, whom the article described as “green campaigners” with “little scientific expertise.” The article also stated that the authors’ research had been based on a scientific paper that dealt with the impact of human activity rather than climate change.

In fact, the IPCC’s Amazon statement is supported by peer-reviewed scientific evidence. In the case of the WWF report, the figure had, in error, not been referenced, but was based on research by the respected Amazon Environmental Research Institute (IPAM) which did relate to the impact of climate change. We also understand and accept that Mr Rowell is an experienced environmental journalist and that Dr Moore is an expert in forest management, and apologise for any suggestion to the contrary.

The article also quoted criticism of the IPCC’s use of the WWF report by Dr Simon Lewis, a Royal Society research fellow at the University of Leeds and leading specialist in tropical forest ecology. We accept that, in his quoted remarks, Dr Lewis was making the general point that both the IPCC and WWF should have cited the appropriate peer-reviewed scientific research literature. As he made clear to us at the time, including by sending us some of the research literature, Dr Lewis does not dispute the scientific basis for both the IPCC and the WWF reports’ statements on the potential vulnerability of the Amazon rainforest to droughts caused by climate change.

In addition, the article stated that Dr Lewis’ concern at the IPCC’s use of reports by environmental campaign groups related to the prospect of those reports being biased in their conclusions. We accept that Dr Lewis holds no such view – rather, he was concerned that the use of non-peer-reviewed sources risks creating the perception of bias and unnecessary controversy, which is unhelpful in advancing the public’s understanding of the science of climate change. A version of our article that had been checked with Dr Lewis underwent significant late editing and so did not give a fair or accurate account of his views on these points. We apologise for this.

Note that the Sunday Times has removed the original article from their website (though a copy is available here), and the retraction does not appear to have ever been posted online. Here is a scan of the print version just in case there is any doubt about its existence. (Update: the retraction has now appeared).

This follows on the heels of a German paper, the Frankfurter Rundschau, recently retracting a story on the ‘Africagate’ non-scandal, based on reporting from….. Jonathan Leake.

It is an open question as to what impact these retractions and apologies have, but just as with technical comments on nonsense articles appearing a year after the damage was done, setting the record straight is a important for those people who will be looking at this at a later date, and gives some hope that the media can be held (a little) accountable for what they publish.

Filed Under: Climate Science, IPCC, Reporting on climate

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 20
  • Page 21
  • Page 22
  • Page 23
  • Page 24
  • Interim pages omitted …
  • Page 40
  • Go to Next Page »

Primary Sidebar

Search

Search for:

Email Notification

get new posts sent to you automatically (free)
Loading

Recent Posts

  • Unforced Variations: Dec 2025
  • Who should pay?
  • Site updates etc.
  • Raising Climate Literacy
  • Unforced variations: Nov 2025
  • High-resolution ‘fingerprint’ images reveal a weakening Atlantic Ocean circulation (AMOC)

Our Books

Book covers
This list of books since 2005 (in reverse chronological order) that we have been involved in, accompanied by the publisher’s official description, and some comments of independent reviewers of the work.
All Books >>

Recent Comments

  • Mr. Know It All on Who should pay?
  • patrick o twentyseven on Who should pay?
  • Eddy on Raising Climate Literacy
  • patrick o twentyseven on Who should pay?
  • patrick o twentyseven on Who should pay?
  • Piotr on Who should pay?
  • Tomáš Kalisz on Unforced variations: Nov 2025
  • Nigelj on Who should pay?
  • Nigelj on Who should pay?
  • patrick o twentyseven on Who should pay?
  • Radge Havers on Who should pay?
  • Ray Ladbury on Who should pay?
  • Ron R. on Who should pay?
  • Barry E Finch on Unforced variations: Nov 2025
  • Ron R. on Who should pay?
  • Barton Paul Levenson on Who should pay?
  • E. Schaffer on Unforced Variations: Dec 2025
  • MA Rodger on Unforced Variations: Dec 2025
  • Atomsk’s Sanakan on Raising Climate Literacy
  • Kevin McKinney on Who should pay?
  • Kevin McKinney on Who should pay?
  • Atomsk’s Sanakan on Raising Climate Literacy
  • Ken Towe on Who should pay?
  • Mr. Know It All on Who should pay?
  • Adam Lea on Who should pay?
  • Nigelj on Who should pay?
  • patrick o twentyseven on Unforced variations: Nov 2025
  • patrick o twentyseven on Unforced variations: Nov 2025
  • Yebo Kando on Raising Climate Literacy
  • Nigelj on Who should pay?

Footer

ABOUT

  • About
  • Translations
  • Privacy Policy
  • Contact Page
  • Login

DATA AND GRAPHICS

  • Data Sources
  • Model-Observation Comparisons
  • Surface temperature graphics
  • Miscellaneous Climate Graphics

INDEX

  • Acronym index
  • Index
  • Archives
  • Contributors

Realclimate Stats

1,389 posts

15 pages

248,704 comments

Copyright © 2025 · RealClimate is a commentary site on climate science by working climate scientists for the interested public and journalists.