News Feeds

Real Climate

  • IPCC attribution statements redux: A response to Judith Curry - I have written a number of times about the procedure used to attribute recent climate change (here in 2010, in 2012 (about the AR4 statement), and again in 2013 after AR5 was released). For people who want a summary of what the attribution problem is, how we think about the human contributions and why the […]
  • How much methane came out of that hole in Siberia? - Siberia has explosion holes in it that smell like methane, and there are newly found bubbles of methane in the Arctic Ocean. As a result, journalists are contacting me assuming that the Arctic Methane Apocalypse has begun. However, as a climate scientist I remain much more concerned about the fossil fuel industry than I am […]
  • Unforced variations: Aug 2014 - This month’s open thread. Keeping track of the Arctic sea ice minimum is interesting but there should be plenty of other climate science topics to discuss (if people can get past the hype about the Ebola outbreak or imaginary claims about anomalous thrusting). As with last month, pleas no discussion of mitigation strategies – it […]
  • Rossby waves and surface weather extremes - A new study by Screen and Simmonds demonstrates the statistical connection between high-amplitude planetary waves in the atmosphere and extreme weather events on the ground. Guest post by Dim Coumou There has been an ongoing debate, both in and outside the scientific community, whether rapid climate change in the Arctic might affect circulation patterns in […]
  • Release of the International Surface Temperature Initiative’s (ISTI’s) Global Land Surface Databank, an expanded set of fundamental surface temperature records - Guest post by Jared Rennie, Cooperative Institute for Climate and Satellites, North Carolina on behalf of the databank working group of the International Surface Temperature Initiative In the 21st Century, when multi-billion dollar decisions are being made to mitigate and adapt to climate change, society rightly expects openness and transparency in climate science to enable […]
  • Unforced variations: July 2014 - This month’s open thread. Topics of potential interest: The successful OCO-2 launch, continuing likelihood of an El Niño event this fall, predictions of the September Arctic sea ice minimum, Antarctic sea ice excursions, stochastic elements in climate models etc. Just for a change, no discussion of mitigation efforts please!
  • Unforced variations: June 2014 - June is the month when the Arctic Sea Ice outlook gets going, when the EPA releases its rules on power plant CO2 emissions, and when, hopefully, commenters can get back to actually having constructive and respectful conversations about climate science (and not nuclear energy, impending apocalypsi (pl) or how terrible everyone else is). Thanks.
  • El Niño or Bust - Guest commentary from Michelle L’Heureux, NOAA Climate Prediction Center Much media attention has been directed at the possibility of an El Niño brewing this year. Many outlets have drawn comparison with the 1997-98 super El Niño. So, what are the odds that El Niño will occur? And if it does, how strong will it be? […]
  • Unforced variations: May 2014 - This month’s open thread. In order to give everyone a break, no discussion of mitigation options this month – that has been done to death in previous threads. Anything related to climate science is totally fine: Carbon dioxide levels maybe, or TED talks perhaps…
  • Faking it - Every so often contrarians post old newspaper quotes with the implication that nothing being talked about now is unprecedented or even unusual. And frankly, there are lots of old articles that get things wrong, are sensationalist or made predictions without a solid basis. And those are just the articles about the economy. However, there are […]

Climate Depot

Climate Skeptic

  • 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 […]
  • Computer Models as “Evidence” - Cross-posted from Coyoteblog The BBC has decided not to every talk to climate skeptics again, in part based on the “evidence” of computer modelling Climate change skeptics are being banned from BBC News, according to a new report, for fear of misinforming people and to create more of a “balance” when discussing man-made climate change. The latest […]
  • Another Plea to Global Warming Alarmists on the Phrase “Climate Denier” - Cross-posted from Coyoteblog Stop calling me and other skeptics “climate deniers“.  No one denies that there is a climate.  It is a stupid phrase. I am willing, even at the risk of the obvious parallel that is being drawn to the Holocaust deniers, to accept the “denier” label, but it has to be attached to […]
  • My Thoughts on Steven Goddard and His Fabricated Temperature Data Claim - Cross-posted from Coyote Blog. Steven Goddard of the Real Science blog has a study that claims that US real temperature data is being replaced by fabricated data.  Christopher Booker has a sympathetic overview of the claims. I believe that there is both wheat and chaff in this claim, and I would like to try to […]
  • The Thought Experiment That First Made Me A Climate Skeptic - Please check out my Forbes post today.  Here is how it begins: Last night, the accumulated years of being called an evil-Koch-funded-anti-science-tobacco-lawyer-Holocaust-Denier finally caught up with me.  I wrote something like 3000 words of indignation about climate alarmists corrupting the very definition of science by declaring their work “settled”, answering difficult scientific questions with the […]
  • Explaining the Flaw in Kevin Drum’s (and Apparently Science Magazine’s) Climate Chart - Cross-Posted from Coyoteblog I won’t repeat the analysis, you need to see it here.  Here is the chart in question: My argument is that the smoothing and relatively low sampling intervals in the early data very likely mask variations similar to what we are seeing in the last 100 years — ie they greatly exaggerate […]
  • If You Don’t Like People Saying That Climate Science is Absurd, Stop Publishing Absurd Un-Scientific Charts - Reprinted from Coyoteblog science a “myth”.  As is usual for global warming supporters, he wraps himself in the mantle of science while implying that those who don’t toe the line on the declared consensus are somehow anti-science. Readers will know that as a lukewarmer, I have as little patience with outright CO2 warming deniers as […]
  • Update On My Climate Model (Spoiler: It’s Doing a Lot Better than the Pros) - Cross posted from Coyoteblog In this post, I want to discuss my just-for-fun model of global temperatures I developed 6 years ago.  But more importantly, I am going to come back to some lessons about natural climate drivers and historic temperature trends that should have great relevance to the upcoming IPCC report. In 2007, for […]
  • Climate Goundhog Day - I posted something like this over at my other blog but I suppose I should post it here as well.  Folks ask me why I have not been blogging much here on climate, and the reason is that is has just gotten too repetitive.  It is like the movie Groundhog Day, with the same flawed […]
  • Amherst, MA Presentation, March 7 - I will be rolling out version 3.0 of my presentation on climate that has already been around the Internet and back a couple of times.  Called “Don’t Panic:  The Science of the Climate Skeptic Position”, it will be given at 7PM in the Pruyne Lecture Hall at Amherst College on March 7, 2013.  Come by […]

Watts Up With That

  • How not to do a solar power project – great moments in solar engineering - Regarding this article, I think I’ve found a simple reason for this failure, and the reason will shock and surprise you. In the article, a news report by TV station WFTS is cited: WFTS News in Tampa obtained copies of the courthouse’s electricity bills and confirmed the savings are no more than about $2,000 per…
  • Mystery of the sailing stones of Death Valley solved – ‘climate change’ immediately blamed for no good reason - The discovery of the mechanism that causes “sailing stones” in Death Valley is actually a great example of observational science, it just too bad these scientists ruined the announcement by blaming “climate change” instead of the things that ACTUALLY drive the flooding of the playa, like regional weather patterns, the PDO, and ENSO. Watch the…
  • Chemistry parable – Sustainability: The Universal Solvent of Private Property Rights - Guest essay by Charles Battig, MD | The alchemists of old were diligently ambitious in their goals. These antecedents of modern chemistry were not hindered by a lack of knowledge of atomic structure and physical chemistry when it came to setting priorities. Lacking a nuclear reactor and knowledge of atomic reactions, they postulated the existence…
  • A psychologist’s scathing review of John Cook’s ‘97% consensus’ nonsensus paper - Psychologist José Duarte writes: The Cook et al. (2013) 97% paper included a bunch of psychology studies, marketing papers, and surveys of the general public as scientific endorsement of anthropogenic climate change. Let’s go ahead and walk through that sentence again. The Cook et al 97% paper included a bunch of psychology studies, marketing papers, and…
  • Problems with Statistical Tests of Pre-1958 Atmospheric CO2 Concentration Data - James McCown writes: A number of climatologists and economists have run statistical tests of the annual time series of greenhouse gas (GHG) concentrations and global average temperatures in order to determine if there is a relation between the variables. This is done in order to confirm or discredit the anthropogenic global warming (AGW) theory that…
  • Younger Dryas climate event solved via nanodiamonds – it was a planetary impact event - From the University of California at Santa Barbara -By Julie Cohen | Most of North America’s megafauna — mastodons, short-faced bears, giant ground sloths, saber-toothed cats and American camels and horses — disappeared close to 13,000 years ago at the end of the Pleistocene period. The cause of this massive extinction has long been debated…
  • Friday Funny: Full text of IPeCaC’s 2020 report leaked! - WUWT exclusive | Christopher Monckton of Brenchley The shock full text of IPeCaC’s Sixth Assessment Report (2020), the last of an undistinguished series of leaden, multi-thousand-page rent-seekers’ manifestoes, has been leaked. It can now be revealed exclusively to an eagerly sleeping world. The Lord Monckton Foundation’s zit-faced, Coke-gurgling, coke-sniffing, donut-guzzling teenage hackers, TweedleDumb and TweedleDumber,…
  • Climate craziness of the week: Man to live on melting iceberg for one year to highlight climate change - By the way, the iceberg shown in the background of the photo from his video is a fake – done by CGI. That’s not a good way to start in my opinion. The man is Alex Bellini, a “professional adventurer and motivational speaker” who plans to live alone on a melting iceberg off the coast…
  • California drivers brace for costly new global warming gas tax - Neal Kaye writes | Californians already pay the nation’s second highest gas tax at 68 cents a gallon — and now it will go up again in January to pay for a first-in-the-nation climate change law. “I didn’t know that,” said Los Angeles motorist Tyler Rich. “It’s ridiculous.” “I think it’s terrible,” added Lupe Sanchez,…
  • The volcanic area near Bárðarbunga is erupting - A fissure eruption has started north of Dynjujökull, seen in the photo. A live YouTube stream is available below Authorities in Iceland say the fissure is ~10 km north of Vatnajökull and currently measures about 100 meters long. The eruption started shortly after midnight on August 29 in Iceland, however the eruption seems to be subsiding…
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