Well, having been around for quite a few years, I've learned that the climate is always changing. Sometimes it is hot, cold, rainy, snowy, dry, cloudy, sunny, or even simply mild. Because of these seasonal and yearly fluctuations, I've always dismissed the climate change argument.
However, global warming is a bit more interesting. Here in the northeastern United States, temperatures have been above normal for most of the winter months. That seems like warming to me. But then I read about the record breaking low temperatures in Alaska and Europe this year, and it seems like cooling to me.
Wattsupwiththat.com wrote an interesting article that summarizes the sub-zero temperatures experienced in various parts of Alaska this year titled: Bitter cold records broken in Alaska – all time coldest record nearly broken, but Murphy’s Law intervenes. And, a search for the term "record cold in alaska" returns
- Record Lowest Temperatures by State — Infoplease.com (note Alaska in 1971)
- Record Cold in Alaska – updated | WOODTV.com Blogs (September 2010)
- Media Ignore Near-Record Cold in Alaska | NewsBusters.org (April 2007)
Undaunted, the proponents point to the glaciers and scream "The Glaciers are Receding!" This proves that global warming exists.
Unfortunately, glaciers grow and recede as part of their natural life-cycle. Years ago, I visited an Alaskan glacier. The ranger there explained why using glaciers as an argument was a fallacy. He told us:
Glaciers are formed by the constant snow in the mountains. As the snow builds up, it becomes a glacier by compressing the snow at the bottom into hard ice. After a while, the force of the snow becomes too great for the friction to hold the glacier on the slopes. When this happens, the glacier slides down the mountain. Thus it is growing. After a while, the glacier is spread over a wide surface and the friction holds it in place. Because the lower portion is at a lower altitude and in warmer temperatures, that portion begins to melt away. This means the glacier is receding. After some point, the snow at the top builds up again, and forces the glacier to slide down the mountain again. Thus, the glacier naturally grows and recedes. |
A number of sources verify the park rangers explanation You can see this by visiting the following sites:
- Glaciers (animated source -click on "Overview" button, then arrow forward at "Types of Glaciers")
- PBS: Interactive Anatomy of a Glacier
- NSIDC: All about Glaciers
Additionally, the book Voodoo Science: The Road from Foolishness to Fraud by Robert L. Park provides an excellent description of this and other scientific hoaxes.
this is a subject that I have a lot of interest in. So much of so called climate change is due to solar activity. The Politically Incorrect Guide to Global Warming was very informative reading
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