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Engaging With Climate Skeptics

In the wake of the CRU "climategate" leak, reader Geoffrey.landis sends along a New York Times blog profile of Judith Curry, a climate scientist at Georgia Tech. "Curry — unlike many climate scientists — does not simply dismiss the arguments of 'climate skeptics,' but attempts to engage them in dialogue. She can, as well, be rather pointed in criticizing her colleagues, as in a post on the skeptic site climateaudit where she argues for greater transparency for climate data and calculations (mirrored here). In this post she makes a point that tribalism in science is the main culprit here —- that when scientists 'circle the wagons' to defend against what they perceive to be unfair (and unscientific) attacks, the result can be damaging to the actual science being defended. Is it still possible to conduct a dialogue, or is there no possible common ground?"

6 of 822 comments (clear)

  1. Re:Great... by bheer · · Score: 5, Informative

    The claims of evolution skeptics and round-earth skeptics is not backed up by observation and evidence. On the other hand, the more extreme claims of anthropogenic global warming _proponents_ are not backed up with sufficient observation and are extrapolated from very small datasets.

    Given all of this, to say the "science is settled" is a travesty, and all those who said so fully deserve what's come so far and is undoubtedly coming as there's greater public and scientific scrutiny of their methods:

    a) the Yamal tree-ring data - data from 10 trees is extrpolated into a 'trend' and finds its way into a number of papers
    b) CRU emails - won't say much more, too much said about this already.
    c) New Zealand average temperature graphs - high-school style 'cooking the graph' to match expectations

    At this point, climate scientists who don't open up their raw data, modelling code and assumptions/decision-making are going to look as sleazy as PHB managers who forecast self-serving weird shit to make themselves look good to their bosses.

  2. Re:Extraordinary claims... by Anonymous Coward · · Score: 5, Informative

    How about

    "Greenland's ice sheet melted nearly 19 billion tons more than the previous high mark, and the volume of Arctic sea ice at summer's end was half what it was just four years earlier, according to new NASA satellite data obtained by The Associated Press."
    http://www.cbsnews.com/stories/2007/12/13/tech/main3613698.shtml

    Or is that to anecdotal for you?

  3. Re:Extraordinary claims... by eldavojohn · · Score: 5, Informative

    Quite Anecdotal to me. The Antarctic has 90% of the earth's ice anyway. The eastern half of Antarctica is 4x the size of the western half, and is cooling/growing.

    You may want to update the facts that you were trained to regurgitate.

    Normal cycles, should not be made into an international crisis.

    I've never studied climatology or even oceanography but if you're going to make such statements, I hope you have the credentials to back it up and tell me without any doubt what a 'normal cycle' constitutes.

    --
    My work here is dung.
  4. Re:Great... by bhima · · Score: 5, Informative

    Your 'point' is is not factually correct. Nothing in the CRU email and data indicates scientists who subscribe to an anthropogenic cause of climate change have not been systematically lying or engaging in unethical practices to support their work. There already are *mountains* of evidence from a huge array of sciences supporting both climate change and an anthropogenic cause. And nothing on Wikileaks invalidates any of the work done at CRU or any other climate research institute.

    The reality of all that hoopla is the people doing the agitating had long since decided that not only can the climate not change but even if it did man couldn't possibly have an impact.

    --
    Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.
  5. Re:Extraordinary claims... by NoOneInParticular · · Score: 4, Informative

    Marketing. Greenland was named such to attract settlers.

  6. Re:Great... by khayman80 · · Score: 4, Informative

    There are no mountains of research that show why any climate change is happening or even IF climate change is happening.

    I've collected dozens of independent, peer-reviewed articles in my article devoted to engaging with climate skeptics. I even described my own personal research which independently confirms Greenland and Alaskan glacier melt through their effects on time-variable gravity. Just last month at the most recent GRACE Science Team Meeting, my advisor displayed the most recent GRACE results over Greenland, showing that the mass loss is accelerating and spreading from the southeast coast to the entire western coast.

    There most certainly is a mountain of evidence showing that abrupt climate change is happening, and that it's due to anthropogenic CO2 emissions.

    Arctic ice cover has increased every year since 2007...

    As I keep repeating, 2007 was the steepest drop in ice cover on record. It scared a lot of us when the extent of the drop was shown at the 2007 AGU conference because the climate models weren't predicting such a huge drop. The subsequent increases actually confirm that this decrease was due to weather, not climate, which tends to validate the models.

    ...while the AGW models pushed by the NSIDC and IPCC don't allow for any such increase.

    Completely wrong. Global circulation models allow for short-term variability due to weather. That's the whole point of taking an ensemble with varying initial conditions and parameterizations. Please remember that weather is different than climate, which is an average over at least several years.

    Carbon dioxide is routinely pushed by politicians as the cause of global warming...

    When studying any science, it's best to ignore politicians and only focus on peer-reviewed scientific articles. In this case, you should be paying attention to the fact that scientists are saying CO2 is causing abrupt climate change.

    ...and yet it is a simple calculation to show that there is already more than sufficient carbon dioxide in the atmosphere to absorb ALL of the IR radiation radiating from Earth that is in the wavelength where it can be absorbed by carbon dioxide... within the first few hundred meters of the atmosphere.

    Again, I've discussed this in detail many times. You're neglecting to consider pressure broadening, which forces any realistic climate model to treat each layer of the atmosphere differently. CO2 isn't saturated in the highest layer of the atmosphere, which is what really matters.

    It is even easier to show that gas-phase H2O in the atmosphere (commonly referred to as humidity) is present in much higher concentrations in the atmosphere than CO2 and is a far more potent 'greenhouse' gas than CO2...and yet the planet is obviously still able to radiate sufficient heat to space in the non-absorbable IR wavelengths to cool itself.

    Yet again, I need to repeat that water vapor is a feedback in the climate, not a forcing. We can't change the amount of water vapor in the atmosphere because it establishes equilibrium with the oceans in a matter of weeks. However, because we're increasing the temperature of the planet by increasing CO2 concentrations, water vapor will tend to provide positive feedback which will make the problem worse.

    Also, water vapor isn't well-mixed to t