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Join Dr. McDougall along with fellow McDougallers in lively discussions and share your opinions.
Is the Artic the globe?simoncat wrote:What about what is happening with the Arctic and the polar bears? It is already happening!!!
Deehege wrote:Scientists all over the world are talking about global warming. All you need to do is go to youtube and listen to all the presentations. It is real, it is happening all over the world and it is on your doorstep wherever you are. All the disasters like tsunamis, earthquakes are partly due to global warming. Take a look at the weather in UK. We no longer have summers or winters for that matter. If you need more evidence you might be dead by the time you find out.
Ege Bamyasi wrote:Burgess wrote:Is the Artic the globe?simoncat wrote:What about what is happening with the Arctic and the polar bears? It is already happening!!!
I like to think of it as a puking sick canary in a coal mine, with copious strings of green bird phlegm hanging from its beak and puddling at its feet, myself.
Arctic sea ice volume by month in cubic kilometers (with simple quadratic trend lines projecting to zero volume, details here). The bottom (red) line is September volume.
http://www.scienceprogress.org/2011/05/ ... continues/
Money quote at the end of the article:A 2008 study led by David Lawrence of the National Center for Atmospheric Research (NCAR) concluded:We find that simulated western Arctic land warming trends during rapid sea ice loss are 3.5 times greater than secular 21st century climate-change trends. The accelerated warming signal penetrates up to 1500 km inlandâ€¦.
In other words, if it continues, the recent trend in sea ice loss may triple overall Arctic warming, causing large emissions in carbon dioxide and methane from the tundra this century (for a review of recent literature on the tundra, see here). Indeed, Lawrence himself said, â€śOur study suggests that, if sea-ice continues to contract rapidly over the next several years, Arctic land warming and permafrost thaw are likely to accelerate.â€ť
A February study by National Snow and Ice Data Center with conservative assumptions concluded, â€śThawing permafrost feedback will turn Arctic from carbon sink to source in the 2020s, releasing 100 billion tons of carbon by 2100.â€ť The paleoclimate record is not reassuring. And the National Science Foundation in 2010 even pointed out, â€śrelease of even a fraction of the methane stored in the [Eastern Siberian] shelf could trigger abrupt climate warming.â€ť
Long but excellent read.
Mober wrote:My neighbors dad is a climatologist in Iowa. He meets and talks with many farmers on the topic, which by and large there is not a warm reception to the topic. He asks them when they planted corn this year. Ok when did you plant 10-20 years ago? The light bulb goes on as they realize they used to plant in end of May now they do at the beginning. Its so weird to me that change is nearly universally accepted by scientists but the public gets fed so much doubt. Btw, did you know the city of Chicago stopped planting trees they normally do and are beginning to plant warmer climate trees, assuming temps will rise over the lifetime of the new trees?
http://www.nytimes.com/2011/05/23/scien ... wanted=all
Eventually it will be very cool as there won't be a sun, in the mean time it will actually get hotter but way too slow to matter in any timeframe we can fathom.
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