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Originally Posted by aerohead
As mountain glaciers retreat with global warming,we'll be losing streams,rivers,and reservoirs.It's already documented in South America,and elsewhere.Not a good trend with 2-billion more Earthlings in the pipeline.
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My understanding is that glaciers would not normally contribute to rivers because they are roughly thought of as static, or persisting over many years. It's the annual snow melt that feeds our waterways. My thought is that a more energetic (hotter) world would cycle more water, resulting in more rain/snow cycles. Perhaps rivers could see a net increase in volume globally? After all, a stream is simply the release of sun energy that moved the water to a higher potential energy in the first place.
Quote:
Originally Posted by Vman455
Grand Coulee Dam looks deceptively short simply because it's so massive. But according to the National Park Service it is 550 feet high and just under a mile wide. I've stopped there before; I would not have guessed those dimensions even after seeing it in person.
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That was my impression of the Grand Canyon. After having spent a week in Bryce and Zion, the Grand Canyon was a bit of a let down. Zion frames in the smaller features to give everything perspective, whereas the Grand Canyon was too expansive to be be amazed by it's much larger size. Then again, I didn't hike into the canyon or anything, so that probably makes a big difference.