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Glaciers disappearing from Kilimanjaro
http://www.cnn.com/2009/TECH/science...ers/index.html
85% decrease in the mass of the glaciers on Mt. Kilimanjaro from 1912 to 2007, and a 26% decrease just from 2000 to 2007. :( |
What in the world does this have to do with "weather and chasing"?
John, I withdraw my comment. I thought this thread should be in "bar and grill" but I see there is no "bar and grill" any longer. Mods: Could we bring it back? |
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Done.
Thanks Skip and Marcus! Mike |
Ah, I see Mike is always eager to crush a climate change thread, or anything related, but John Farley's post is relevant to the guidelines of "unusual temperatures" which is mentioned in Tim's rules. The big picture of climate is interesting to consider for weather anyhow.
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Jason,
If you will read what I wrote, I was not attempting to "crush" a thread but have it located in the right place. Global warming is a contentious issue for many and "Bar and Grill" is the better place from my perspective. However, since you opened the door by citing "unusual temperatures", please provide evidence that temperatures in the specific area of the glacier have run far above normal for the 2000-2007 period. Those are the only temperatures pertinent to a discussion about temperatures and that glacier. Otherwise, this is a better explanation: http://wattsupwiththat.com/2009/11/0...rubbish-again/ Mike |
As Jason suggests, I put it here because I thought it related to issues of weather and climate. In the link Mike provided I saw mention in various comments of unusual dryness and stronger winds as possible explanations, in addition to warmer temperatures. All related to weather and climate, so I don't think it belongs in B&G. Note I did not say anything about the cause - but whatever is going on it affects more than just Kilimanjaro, because the article mentions there are similar declines in tropical mountain glaciers in other parts of the world.
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Since we're on the subject of climate change. With greenhouse gases increasing the IR optical depth, how much of the warming is instead contributed to a lowered albedo of the earth. That is the greenhouse gases increases surface temperatures, initiating some warming, thus causing ice to melt, which in turn would decrease albedo. This to me is potentially more dangerous since aren't most of the CO2 absorption bands fairly saturated as it is? It's also easy to derive that temperature of earth is proportional to (1-Albedo)^(1/4). I don't know that much about the subject as some, so perhaps another could chime in.
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As the article itelf mentions, once any dark ground surface is exposed, the decreased albedo results in a runaway exponentially-accelerating melting cycle. So the point of argument would be at the moment that the first significant uncovering of bare ground around the glaciers occured, and what caused that to happen. From that point onward, the 'runaway' accelerating melting rates would be a factor of local albedo change, not any shift in world climate.
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