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Current conditions for Troutdale as of Wed, 28 Jan 2015 1:52 pm PST

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Real Climate

  • Thoughts on 2014 and ongoing temperature trends - Last Friday, NASA GISS and NOAA NCDC had a press conference and jointly announced the end-of-year analysis for the 2014 global surface temperature anomaly which, in both analyses, came out top. As you may have noticed, this got much more press attention than their joint announcement in 2013 (which wasn’t a record year). In press […]
  • A new sea level curve - The “zoo” of global sea level curves calculated from tide gauge data has grown – tomorrow a new reconstruction of our US colleagues around Carling Hay from Harvard University will appear in Nature . That is a good opportunity for an overview over the available data curves. The differences are really in the details, the […]
  • Diagnosing Causes of Sea Level Rise - Guest post by Sarah G. Purkey and Gregory C. Johnson, University of Washington / NOAA I solicited this post from colleagues at the University of Washington. I found particularly interesting because it gets at the question of sea level rise from a combination of ocean altimetry and density (temperature + salinity) data. This kind of […]
  • Unforced Variations: Jan 2015 - This month’s open thread. Sorry for the slow start – you know what it’s like after the holidays…
  • Absolute temperatures and relative anomalies - Most of the images showing the transient changes in global mean temperatures (GMT) over the 20th Century and projections out to the 21st C, show temperature anomalies. An anomaly is the change in temperature relative to a baseline which usually the pre-industrial period, or a more recent climatology (1951-1980, or 1980-1999 etc.). With very few […]
  • Clarity on Antarctic sea ice. - I’ve always been a skeptic when it comes to Antarctic sea ice. I’m not referring here to the tiresome (and incorrect) claim that the expansion of sea ice around Antarctica somehow cancels out the dramatic losses of sea ice in the Arctic (NB: polar bears don’t really care if there is sea ice in Antarctica […]
  • AGU 2014 - Once more unto the breach! Fall AGU this year will be (as last year) …the largest Earth Science conference on the planet, and is where you will get previews of new science results, get a sense of what other experts think about current topics, and indulge in the more social side of being a scientist. […]
  • Ten Years of RealClimate: Where now? - The landscape for science blogging, the public discourse on climate and our own roles in the scientific community have all changed radically over the last 10 years. Blogging is no longer something that stands apart from professional communications, the mainstream media or new online start-ups. The diversity of voices online has also increased widely: scientists […]
  • Ten Years of RealClimate - In the spring of 2004, when we (individually) first started talking to people about starting a blog on climate science, almost everyone thought it was a great idea, but very few thought it was something they should get involved in. Today, scientists communicating on social media is far more commonplace. On the occasion of our […]
  • Ten years of RealClimate: Thanks - As well as the current core team – David Archer, Eric Steig, Gavin Schmidt, Mike Mann, Rasmus Benestad, Ray Bradley, Ray Pierrehumbert, Stefan Rahmstorf – this blog has had input from many others over the years: The 90+ guest contributors and previous team members who bring a necessary diversity of experience and expertise to the […]

Climate Depot

Climate Skeptic

  • Mistaking Cyclical Variations for the Trend - I titled my very first climate video “What is Normal,” alluding to the fact that climate doomsayers argue that we have shifted aspects of the climate (temperature, hurricanes, etc.) from “normal” without us even having enough historical perspective to say what “normal” is. A more sophisticated way to restate this same point would be to […]
  • Typhoons and Hurricanes - (Cross-posted from Coyoteblog) The science that CO2 is a greenhouse gas and causes some warming is hard to dispute.  The science that Earth is dominated by net positive feedbacks that increase modest greenhouse gas warming to catastrophic levels is very debatable.  The science that man’s CO2 is already causing an increase in violent and severe […]
  • Those Who Follow Climate Will Definitely Recognize This - This issue will be familiar to anyone who has spent time with temperature graphs.  We can ask ourselves if 1 degree of global warming is a lot, when it is small compared to seasonal variations, or even intra-day variation, you would find in most locations.  That is not a trick question.  It might be important, […]
  • Layman’s Primer on the Climate Skeptic Position - I am a “lukewarmer”, which means a skeptic that agrees that man-made CO2 is incrementally warming the Earth but believes that the amount of that warming is being greatly exaggerated.  In addition, I believe that the science behind evidence of current “climate change” is really poor, with folks in the media using observations of tail-of-the-distribution weather […]
  • When Climate Alarmism Limits Environmental Progress - One of my favorite sayings is that “years from now, environmentalists will look back on the current obsession with global warming and say that it did incredible harm to real environmental progress.”  The reason is that there are many environmental problems worse than the likely impact of man-made global warming that would cost substantially less […]
  • Why We Are Exaggerating “Extreme Weather” - I have written in article at Forbes.com called Summer of the Shark, Global Warming Edition.  It describes why the media, and many average citizens, are exaggerating the degree and effects of extreme weather.  Here is a preview of that article, but I encourage you to read it all In the summer of 2001, a little boy […]
  • HydroInfra: Scam! Investment Honeypot for Climate Alarmists - Cross-posted from Coyoteblog. I got an email today from some random Gmail account asking me to write about HyrdoInfra.  OK.  The email begins: “HydroInfra Technologies (HIT) is a Stockholm based clean tech company that has developed an innovative approach to neutralizing carbon fuel emissions from power plants and other polluting industries that burn fossil fuels.” […]
  • Presentation: The Science of the Skeptic Position - Here is the most recent version of my presentation “Don’t Panic: The Science of the Climate Skeptic Position” I am working to add the narration to it in video form so it is easier to follow. Until I can get that posted, here is my older version of the presentation: Catastrophe Denied: The Science of […]
  • Switching Back to Disqus - For a variety of reasons, I had to turn off Disqus a while back.  We are going back to it for comments.  Over the next few days you may see comments on old posts disappear and reappear.  If I don’t screw up, within 48 hours all existing comments should be back.
  • Reconciling Conflicting Climate Claims - Cross-posted from Coyoteblog At Real Science, Steven Goddard claims this is the coolest summer on record in the US. The NOAA reports that both May and June were the hottest on record. It used to be the the media would reconcile such claims and one might learn something interesting from that reconciliation, but now all we […]

Watts Up With That

  • Global warming is still on the ‘Great Shelf’ - Annual report on global temperature change to December 2014 By Christopher Monckton of Brenchley Global warming is not happening at anything like the predicted rate. The divergence between prediction and reality is now severe. Despite revisions in the terrestrial datasets calculated to cause an unmeasured increase in the warming rate of recent decades, the gulf…
  • New Paper Claims Extreme La Niñas to Become More Frequent under Global Warming - Guest Post by Bob Tisdale The new 2015 paper by Cai et al Increased frequency of extreme La Niña events under greenhouse warming has been getting a lot of alarmist attention recently. Examples: see the CBS News story Climate change expected to bring more La Niñas, and the  BBC News article Study: Global warming ‘doubles risk’…
  • How to reduce the amount of air in a football without letting any air out - Guest post by Alec Rawls Just fill the ball with warm humid indoor air, then when it temperature-equalizes with the 25°F cooler outdoor air on your AFC Championship playing field some of the water vapor in the ball will condense into water, leaving less air in the ball, solving the great mystery: how did the…
  • Mental Midgets Try To Bite Dr. Willie Soon’s Ankles - Guest Post by Willis Eschenbach According to a biased article in the Boston Globe, a man named Kert Davies, the Executive Director of something called the “Climate Investigations Center” (CIC) has penned a scurrilous letter to the journal Science Bulletin, accusing Dr. Willie Soon of a conflict of interest. The article says he was accused because…
  • UK Met Office says 2014 was NOT the hottest year ever due to ‘uncertainty ranges’ of the data - Met Office Confirms 2014 Continues Global Warming ‘Pause’ Guest essay by Dr David Whitehouse, via The GWPF With the release of the 2014 HadCRUT4 data by the UK Met Office, and the previous release of global temperature data by Berkeley Earth, Nasa and Noaa, the main conclusion to be drawn from the data is that…
  • Study: Siberian permafrost has been warming for 7000 years - Winters in Siberian permafrost regions have warmed since millenia For the first time, researchers have reconstructed the development of winter temperatures in Russia’s Lena River Delta based on old ground ice data From the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research For the first time, researchers at the Alfred Wegener Institute have…
  • Methane deceptions - Deception, agenda and folly drive latest Obama EPA anti-hydrocarbon rules. Are farmers next?   Guest essay by Paul Driessen First they came for the coal mining and power plant industry, and most people did not speak out because they didn’t rely on coal, accepted Environmental Protection Agency justifications at face value, or thought EPA’s war…
  • IPCC Climate Science As A Gestalt Theory Problem - Guest opinion: Dr. Tim Ball The proverb that “they can’t see the forest for the trees” means, they are so consumed with detail, they don’t understand the larger situation. This is true of society in general and climatology in particular. One book that at least addresses part of the problem as it relates to climate,…
  • Tracking the Blizzard of 2015 - National Weather Service forecasters have been tracking a low pressure area that moved from the Midwest into the Atlantic Ocean today, and is expected to become a strong nor’easter that will bring blizzard conditions to the northeastern U.S. The path of the system was captured in a NASA movie of NOAA’s GOES-East satellite imagery. An…
  • Study: Climate models disagree on why temperature ‘wiggles’ occur - Inconsistencies may undermine model’s reliability for projecting decade-to-decade warming and lead to misinterpretation of data From Duke University: DURHAM, N.C. — A new Duke University-led study finds that most climate models likely underestimate the degree of decade-to-decade variability occurring in mean surface temperatures as Earth’s atmosphere warms. The models also provide inconsistent explanations of why…
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