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View Diary: Top Comments: Clearing up confusion over hate groups designation by the SPLC Edition (111 comments)

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  •  I am missing something here? (8+ / 0-)

    Those pools are volcanic in origin. I know we trash the environment in lots of ways, but ... pools like those in Yellowstone pre-date those behaviors, I believe. And are not influenced by most environmental changes I'm aware of. It seems your comment refers to something else?

    "The opposite of war isn't peace, it's CREATION." _ Jonathan Larson, RENT

    by BeninSC on Sun Oct 07, 2012 at 07:25:21 PM PDT

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    •  I based my reply to this part of the caption to (8+ / 0-)

      the photo.

      "Over the years people threw coins, bottles and trash in the pool, reducing its flow and causing the red and orange bacteria to creep in from its edge, replacing the blue bacteria that thrive in the hotter water at the center of the pool. "

      If that's not true, then I take back my comment.

      •  How awful (8+ / 0-)

        Would the water have been a clear deep blue otherwise?

        •  There are bacteria living in the pool, though the (7+ / 0-)

          temps are too hot for us. Apparently the proliferation of bacteria throughout the pool is impacted by environmental 'contributions' made by our species over the past few decades. I don't know what the original color would have been.

          "The opposite of war isn't peace, it's CREATION." _ Jonathan Larson, RENT

          by BeninSC on Sun Oct 07, 2012 at 07:37:47 PM PDT

          [ Parent ]

        •  From my basic understanding of science, yes. (9+ / 0-)

          In fact it works in similar way to what color the sky is based on the amount and types of particles in the air.  Depending on how they refract sunlight, at midday the sky can be any shade of blue or sometimes even grayish.  Plus it affects the colors you see at sunrise and sunset.  The old sailors phrase "red sky at night, sailors delight; red sky in the morning, sailors head warning" is scientifically accurate.

          •  If I understand it correctly, (4+ / 0-)
            Recommended by:
            Steveningen, cohenzee, Puddytat, BeninSC

            The "Red sky at morning" rhyme is based upon weather patterns in the region of the trade winds, near the Equator.  A red sky was due to clouds near the horizon.  (Short-wavelength light (blue) is most efficiently scattered, while long-wavelength light (red) is least efficiently scattered.  If only red light is reaching you, that means there is something in the way to scatter away the rest of the light--clouds, possibly carrying storms with them.)  The trade winds come out of the east.  If the sky was red in the east, in the morning, the clouds were upwind, and you could be in for a storm.  If the clouds were in the west, signified by a red sunset, the clouds were being carried away from you, and were thus no danger.

            -5.13,-5.64; If you gave [Jerry Falwell] an enema, you could bury him in a matchbox. -- Christopher Hitchens

            by gizmo59 on Sun Oct 07, 2012 at 07:59:44 PM PDT

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      •  Ah! (8+ / 0-)

        Yes, they do that sort of thing. But the basic temperature of the water is still way too hot to support human (or canine!) life. And has been, according to the scientists, for many thousands of years. I think volcanic activity in Yellowstone itself dates back over two million years, and is caused, from what I understand, by a 'hot spot' over which the land mass is slowly passing. Originally it apparently impacted areas now to the west of where it is now and eventually (in millions and millions of years), it will apparently affect areas of Montana to the northeast. But we will not see anything of that in our lifetimes.

        "The opposite of war isn't peace, it's CREATION." _ Jonathan Larson, RENT

        by BeninSC on Sun Oct 07, 2012 at 07:35:40 PM PDT

        [ Parent ]

        •  Very true. (5+ / 0-)

          However, different bacteria reflect different wavelengths of the light spectrum which is why you see different colors.  All natural water has bacteria.  When you start to add unnatural things or change the pH of the water, new bacteria might arrive changing the colors that get reflected back.  Pretty colors in certain parts of nature are actually signs of human interference unfortunately.

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