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Hydronic Radiant Floor Heating Retrofits

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In his book Your Green Home, Alex Wilson refers to radiant floors as "a great heating option for a poorly designed house." He goes on to explain that the heating requirements of an extremely well-insulated home with a properly airtight envelope, even in most cold climates, will most likely result in an overheated house if the radiant floor is warm enough to actually feel warm underfoot — which is the main selling point of these systems.

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Will the New List of LEED Innovation Points Lead to Greener Buildings — or Just More Points?

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Innovation point for the Hearst Tower in New York: reduced steel in the structure.
In the first few years of LEED, you could count the Platinum-rated buildings on one hand. Now it's hard to keep up with the announcements. There are several reasons for this evolution — more experienced project teams making better buildings, and more buildings going through LEED in general, for example.
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Desmond Tutu and Green Building?

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The U.S. Green Building Council has announced its Greenbuild keynote speaker for 2008: Archbishop Desmond Tutu. It's an interesting choice, following on the heels of Vice President Al Gore being given half of the Nobel Prize for peace, that reinforces the connection between social justice and environmental performance. What will Tutu have to say about green building? I think he might have something to say about globalism, about the effects that choices in the U.S. have on countries that are very far away geographically and culturally.
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Fail early, fail often, and other riffs from Bruce Sterling

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"There's one thing worse than being young and full of stormy tantrums, and that's being old and backward-looking and crotchety." So said Bruce Sterling (author, thinker, critic, doer) in this year's annual rollicking and roving discussion of the state of the world at The Well — the still-kicking "Whole Earth 'Lectronic Link" founded by Stewart Brand and Larry Brilliant in 1985 (more than 20 years ago!) for the writers and readers of the seminal, sadly defunct Whole Earth Review.
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