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Current conditions for Troutdale as of Fri, 29 May 2015 9:53 pm PDT

Partly Cloudy

68°

High: 63° Low: 53°

Partly Cloudy

Feels like: 68 °F

Barometer: 29.91 in and rising

Humidity: 56%

Visibility: 10 mi

Dewpoint: 53 °F

Wind: 6 mph

Sunrise: 5:25 am

Sunset: 8:46 pm

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Real Climate

  • Global warming and unforced variability: Clarifications on recent Duke study - Guest Commentary from Patrick Brown and Wenhong Li, Duke University We recently published a study in Scientific Reports titled . Our study seemed to generated a lot of interest and we have received many inquires regarding its findings. We were pleased with some of coverage of our study (e.g., here) but we were disappointed that […]
  • Unforced Variations: May 2015 - This month’s open thread.
  • How long does it take Antarctica to notice the Northern Hemisphere is warming? - Eric Steig A series of large and abrupt climate changes occurred during the last ice age, most clearly expressed in ice cores from Greenland and other paleoclimate data from the circum-North-Atlantic region. Since the discovery of these events, we’ve been trying to pin down the timing of abrupt climate changes elsewhere on the globe. Were […]
  • Nenana Ice Classic 2015 - Unsurprisingly to anyone looking at the exceptionally warm winter on the West Coast of North America, the Nenana Ice Classic had another near-record early breakup on Friday, netting some lucky winner(s) around $300,000 in prizes. As I’ve discussed previously (last year and an update), the Ice Classic is a lottery that has been run every […]
  • The return of the iris effect? - Guest commentary from Andy Dessler (TAMU) When a new scientific hypothesis is published, two questions always occur to me: Did the authors convincingly show the hypothesis was correct? If not, is the hypothesis actually correct? The answers to these two questions may not be the same. A good example is Wegener’s theory of continental drift […]
  • An Online University Course on the Science of Climate Science Denial - Guest post from John Cook, University of Queensland For many years, RealClimate has been educating the public about climate science. The value of climate scientists patiently explaining the science and rebutting misinformation directly with the public cannot be overestimated. When I began investigating this issue, my initial searches led me here, which was invaluable in […]
  • A Scientific Debate - Guest posting from Bill Ruddiman, University of Virginia Recently I’ve read claims that some scientists are opposed to AGW but won’t speak out because they fear censure from a nearly monolithic community intent on imposing a mainstream view. Yet my last 10 years of personal experience refute this claim. This story began late in 2003 […]
  • Unforced Variations: April 2015 - April already? Time for a new climate science open thread…
  • Reflections on Ringberg - Constraining climate sensitivity turns out to depend on subtle non-linearities and cloud feedbacks.
  • A hypothesis about the cold winter in eastern North America + Update - The past winter was globally the warmest on record. At the same time it set a new cold record in the subpolar North Atlantic – and it was very cold in the eastern parts of North America. Are these things related? Two weeks ago NOAA published the following map of temperature anomalies for the past […]

Climate Depot

Climate Skeptic

  • Manual Adjustments in the Temperature Record - I have been getting inquiries from folks asking me what I think about stories like this one, where Paul Homewood has been looking at the manual adjustments to raw temperature data and finding that the adjustments actually reverse the trends from cooling to warming.  Here is an example of the comparisons he did: Raw, before […]
  • 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.

Watts Up With That

  • Claim: Data does not prove that climate models are wrong - Alex Sen Gupta, a biological scientist, has written an article (reviewed by John Cook) which attempts to defend the validity of climate models which can’t predict the climate. According to Gupta; To understand what’s happening, it is critical to realise that the climate changes for a number of reasons in addition to CO₂. These include…
  • When Will Climate Scientists Say They Were Wrong? - Guest essay by Patrick J. Michaels Day after day, year after year, the hole that climate scientists have buried themselves in gets deeper and deeper. The longer that they wait to admit their overheated forecasts were wrong, the more they are going to harm all of science. The story is told in a simple graph,…
  • Potholes In Their Arguments - Guest Post by Willis Eschenbach For folks with sensitive stomachs, I’d advise that you do not read the “Working Paper” named How Large Are Global Energy Subsidies? It was produced by the IMF [the “I” stands for “International” and most folks know what a “MF” is] as part of the media blitz in preparation for the upcoming…
  • NASA: El Niño driven ‘stagnant upper-air pattern spread numerous storms and heavy rains [into] central Texas’ no mention of ‘climate change’ - The climate zealots were out in force this week trying to link the rains in Texas to ‘climate change’. The press release from NASA makes no such connections, but instead blames a mundane weather pattern induced by El Niño. Video and explanatory graphic follows. From NASA/Goddard Space Flight Center: Severe flooding hits central Texas, Oklahoma …
  • New Paper Confirms the Drivers of and Processes behind the Atlantic Multidecadal Oscillation - Guest Post by Bob Tisdale The new paper by McCarthy et al. (2015) Ocean impact on decadal Atlantic climate variability revealed by sea-level observations has gained some attention around the blogosphere.    McCarthy et al. (2015) was discussed by Jo Nova here, at ReportingClimateScience here and LiveScience here.  Also see the University of Southampton press release…
  • First Eastern Pacific tropical depression of the season - From NASA/Goddard Space Flight Center The first tropical depression of the Eastern Pacific hurricane season formed during the early morning of Thursday, May 28, 2015, well southwest of Mexico. An image of the storm taken from NOAA’s GOES-West satellite shows the depression in infrared light as it was born in the early morning hours before…
  • German Government In Crisis Over Escalating Cost Of Climate Policy - European Power Plants Face Widespread Bankruptcies Germany’s economics minister Sigmar Gabriel (SPD) wants to levy penalty payments onto coal plants if they produce CO2 emissions above a certain threshold. Against this plan intense resistance is growing in Germany: Within the Christian Democrat, within industry and – for especially dangerous for Gabriel – within the trade…
  • Study finds: ‘severe cold snap during the geological age known for its extreme greenhouse climate’ - The Arctic: Interglacial period with a break Reconstruction of Arctic climate conditions in the Cretaceous period FRANKFURT. Scientists at the Goethe University Frankfurt and at the Senckenberg Biodiversity and Climate Research Centre working together with their Canadian counterparts, have reconstructed the climatic development of the Arctic Ocean during the Cretaceous period, 145 to 66 million…
  • Almost Friday Funny – Tesla is apparently recharging ’emissions free’ electric cars with a diesel generator - Bishop Hill points us to this video of the Tesla Supercharging station at the Harris Ranch exit of Interstate 5 in California. He writes: “How can one resist posting a video of Tesla electric cars being recharged (so it is claimed) using a diesel generator? These people love the environment you see.” The video shows…
  • Recycled: 2035 Himalayan Glacier Claim - Guest essay by Eric Worrall Alarmists are busy recycling old debunked climate claims, in a desperate effort to build up momentum for the upcoming Paris climate conference. According to the Sydney Morning Herald; Glaciers in the Everest region could shrink at least 70 per cent or even disappear entirely by the end of the century…
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