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Dialing Back the Alarm On Climate Change

An anonymous reader writes "A leaked copy of a report by the Intergovernmental Panel on Climate Change (IPCC) has made the rounds and the good news is that the predicted temperature rise expected as a result of man-made emissions of carbon dioxide is lower than predicted in 2007. From the article: 'Admittedly, the change is small, and because of changing definitions, it is not easy to compare the two reports, but retreat it is. It is significant because it points to the very real possibility that, over the next several generations, the overall effect of climate change will be positive for humankind and the planet. Specifically, the draft report says that "equilibrium climate sensitivity" (ECS)—eventual warming induced by a doubling of carbon dioxide in the atmosphere, which takes hundreds of years to occur—is "extremely likely" to be above 1 degree Celsius (1.8 degrees Fahrenheit), "likely" to be above 1.5 degrees Celsius (2.4 degrees Fahrenheit) and "very likely" to be below 6 degrees Celsius (10.8 Fahrenheit). In 2007, the IPPC said it was "likely" to be above 2 degrees Celsius and "very likely" to be above 1.5 degrees, with no upper limit. Since "extremely" and "very" have specific and different statistical meanings here, comparison is difficult.'"

4 of 490 comments (clear)

  1. Still not much of a comfort by K.+S.+Kyosuke · · Score: 5, Informative

    Given the inertia of our industrial and economic processes, it only means that the unstoppable iceberg will simply crawl slower. But at least we have more time. I also don't think that this means a time-out for ocean acidification.

    --
    Ezekiel 23:20
  2. What's with all the Global Warming stuff here? by rolfwind · · Score: 5, Informative

    Just a few days ago, there was a story how the ice in the arctic "rebounded" 60%.

    The real story is in this graph:

    http://postimg.org/image/hcadakghv/

    We've been measuring arctic ice the late 70s. It's at it's maximum in March, melts during the summer, and sees it's minimum in September. 2012 was the record year we had so far for the LEAST amount of artic ice. 2007 has second place and 2011 has 3rd. This year we have more than 2012. This was expected among scientists because of something called regression towards the mean. That concept basically says when an extreme outlier event occurs, we expect the next event to be closer to the average. Basically, the entire hoopla is about playing math games to appear more impressive than it is.

    When the story came out, it was premature the typical September lowpoint, so don't expect the 60% figure to quite hold that high, but it is higher than last year none the less. However, you can see it's still well below 00s average and that every decade has since the measurements started have less and less ice.

    So there you have it? Maybe the heat is going into the oceans? Then melting the poles as the currents do a good job of distributing the equator heat around via currents. The ice melts, breaks off whatever, and like icecubes in a warm drink, cool it down.... until there is no ice left?

    Come on, what is with the propraganda here? Last year was an obsolute low point in Arctic Ice extent.... and we get stories of so called "rebounds"? Just look at the graph and tell me that it trend isn't clear.

  3. Right wing not to be trusted on IPCC leaks by Bueller_007 · · Score: 5, Informative

    The author of this article, Matt Ridley, is a known climate change denialist and of course the Wall Street Journal is owned by Rupert Murdoch and therefore operates under the same umbrella as Fox News.

    Supposed leaks from the IPCC document have already been mischaracterized in the right-wing media. See, for example, Phil Plait's demolition of them here:
    http://www.slate.com/blogs/bad_astronomy/2013/09/10/climate_change_sea_ice_global_cooling_and_other_nonsense.html

    Or if you prefer your demolition in video format:
    http://www.youtube.com/watch?v=lH5D9P6KYfY

    I have no reason to trust the right-wing's interpretation of the IPCC document before it is officially announced and I can check it for myself. Why don't you try WAITING for it to be released before you start spreading this very likely BS.

  4. Conversion by colinrichardday · · Score: 5, Informative

    1.5 degrees Celsius (2.4 degrees Fahrenheit)

    1.5 degrees Celsius is 2.7 degrees Fahrenheit.

    http://en.wikipedia.org/wiki/Temperature#Conversion