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Blog Profile / RealClimate

Filed Under:Issues & Causes / Climate Change
Posts on Regator:441
Posts / Week:1.6
Archived Since:November 10, 2008

Blog Post Archive

A review of cosmic rays and climate: a cluttered story of little success

A number of blogs were excited after having leaked the second-order draft of IPCC document, which they interpreted as a “game-changing admission of enhanced solar forcing”. However, little evidence remains for a link between galactic cosmic rays (GCR) and variations in Earth’s cloudiness. recently provided an extensive review of the study of the GCR and [...]

The heat is on in West Antarctica

Eric Steig Regular followers of RealClimate will be aware of our publication in 2009 in Nature, showing that West Antarctica — the part of the Antarctic ice sheet that is currently contributing the most to sea level rise, and which has the potential to become unstable and contribute a lot more (3 meters!) to sea [...]

Online video lectures on climate change

For those who’d like to get the basics of climate change explained first-hand by a climate scientist, here are two video lectures. In the first, I show some of the basic data sets and findings about global warming, including some comments on historic land marks of our science. The second lecture deals with the impacts [...]

Improving the Tropical Cyclone Climate Record

Guest Commentary by Christopher Hennon (UNC) Get involved in a new citizen science project at The poor quality of the tropical cyclone (TC) data record provides severe constraints on the ability of climate scientists to: a) determine to what degree TCs have responded to shifts in climate, b) evaluate theories on how TCs will [...]

IPCC draft (redux)

Amid the manufactured spin and excitement of the unofficial release of the IPCC WG1 Second Order Draft, it is worth remembering that this happened last time too: IPCC draft: No comment May 4, 2006 As everyone has now realised, the second-order draft of the new IPCC report has become very widely available and many of [...]

Some AGU highlights

Here a few of the videos of the named lectures from last week that are worth watching. There are loads more videso from selected sessions on the AGU Virtual Meeting site (the AGU YouTube channel has quite a lot more from past meetings too). All well worth the time. Charney Lecture: Drew Shindell “Mitigating Near-Term [...]

AGU time again…

This week is Fall AGU, the biggest climate-related conference around. Not everything is related to climate – there is a lot of other geophysics and astrophysics, but it is generally the place to go if you want to see and be seen (and incidentally, be crushed, be excited, be friendly and be frustrated that can’t [...]

Unforced variations: Dec 2012

A new meteorological season, perhaps some new science topics to discuss…

Responses to volcanoes in tree rings and models

Houston, we have a problem. Admittedly, not a huge problem and not one that most people, or even most climatologists, are particularly fascinated by, but one which threads together many topics (climate models, tree rings, paleo-climate) which have been highlighted here in the past. The problem is that we have good evidence in the ice [...]

Don’t estimate acceleration by fitting a quadratic…

… if your data do not look like a quadratic! This is a post about global sea-level rise, but I put that message up front so that you’ve got it even if you don’t read any further. The reputable climate-statistics blogger Tamino, who is a professional statistician in real life and has published a couple [...]

Stronger regional differences due to large-scale atmospheric flow.

A new paper by (free access) is likely to have repercussions on discussions of local climate change adaptation. I think it caught some people by surprise, even if the results perhaps should not be so surprising. The range of possible local and regional climate outcomes may turn out to be larger than expected for regions [...]

ClimateDialogue: Exploring different views on climate change

This is a guest posting from some Dutch colleagues on a new online experiment in fostering dialogue on climate change. Bart Verheggen has asked us to host this quick introduction. We are interested to hear if you think this is a good idea. Guest Commentary by Bart Strengers (PBL) offers a platform for discussions [...]

Weighing change in Antarctica

Guest commentary by Matt King, Michael Bentley and and Pippa Whitehouse Determining whether polar ice sheets are shrinking or growing, and what their contribution is to changes in sea level, has motivated polar scientists for decades. Genuine progress began in the early 1990s when satellite observations started to provide (nearly) spatially comprehensive sets of observations. [...]

Trying to shoot the messenger

Does this sound familiar? A quantitative prediction is inconvenient for some heavily invested folks. Legitimate questions about methodology morph quickly into accusations that the researchers have put their thumb on the scale and that they are simply making their awkward predictions to feather their own nest. Others loudly proclaim that the methodology could never work [...]

Short term trends: Another proxy fight

One might assume that people would be happy that the latest version of the Hadley Centre and CRU combined temperature index is now being updated on a monthly basis. The improvements over the previous version in terms of coverage and error estimates is substantial. One might think that these advances – albeit incremental – would [...]

Unforced Variations: Nov 2012

I can’t think what people might want to talk about this month…

PBS: Climate of Doubt

The video of Tuesday’s PBS show on the politics of the climate debate is available – I make a minor appearance…

A sea level Golden Horseshoe nominee

I was reading a sign high on the wall behind the bar: ‘Only genuine pre-war British and American whiskeys served here’ I was trying to count how many lies could be found in those nine words, and had reached four, with promise of more …” Dashiell Hammett, “The Golden Horseshoe” Google News occasionally throws up [...]

Climate Change videos: Part I

The US National Research Council has been doing a lot recently to expand background knowledge of the climate system and of climate change. In tandem with a new report discussing strategies for advancing climate modeling, they have put up a an introductory web site on climate models (including some interviews with some actual climate modelers). [...]

Unforced variations: Oct 2012

This month’s open thread. Try to keep it at least vaguely focused on climate science…!

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