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Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: HPilot who wrote (19675)	1/16/2008 2:44:04 PM
From: neolib	Read Replies (2) \| Respond to of 36921

Gad, you don't get anything. The atmosphere is largely clear to shortwave, but blocks significant amounts of longwave (IR) radiation. Which if you choose the glass correctly, you can duplicate very well in a greenhouse. So the atmosphere allows shortwave in, it is absorbed by the surface and some fraction reemitted as IR, which the atmosphere does not let back out as well. Hence the temp goes up a little, in order to get in emission balance again. By the correct choice of glass, you can do the exact same thing with a greenhouse. In fact, if you get selected coatings, you can make the glass nearly 100% transparent in the visible spectrum and nearly 100% opaque in the IR. So you can make a much more ideal system than the earth & the atmosphere. Ignore the convective cooling of the glass to the outside air. That is yet another thing that is distracting you from any understanding. Assume the greenhouse is located on the moon. Can we than finally get a modicum of understanding into your brain? BTW, what are the units of Work?