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I stand corrected. I guess in MN, if you're going to have a heat pump, it pretty much as to be ground-source. In Virginia, not so.
DOE lists the typical furnace fan at about 500 KWH/year, here: U.S. Household Electricity Data: A/C, Heating, Appliances So that sets an upper...
Yes, if this is another Pinatubo, then there will be no record set this year. I see a smattering of reports that say it's not big enough yet to...
C02 is estimated to have been maybe 20x current levels, when the sun was about 5% dimmer than now, yielding about the same average global...
March 2010 update: All three series being tracked here show continued warmth. If historical data are a guide, there's now better than an 85%...
The IPCC's sea level projections always have this caveat: " ... excluding future rapid dynamical changes in ice flow." Nobody can model what...
Thank you again, that's given me a lot to think about, a lot of things I had not even considered.
Thanks, that's all very helpful, particularly the installer cost. For shade, I'd have the shadow of at least one tree, sometimes two, trees on...
Any of you PV fans tried them? These get set up as one small inverter for every panel, then you hook them together with regular 240 volt house...
Seems pretty smart to me, wish we'd see more of that. The other day I was looking at C02/KWH from coal-fired and natural gas plants, and I think...
Well, I guess I'll try one more time. First, to be crystal clear, Susan Solomon never said that her research supported the iris hypothesis....
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"Apparently the Wiki quote is directly from the pages of her study"? This is supposedly a quote literally taken from the article published in...
Let's do this one as a Q and A: Q: This "feedback", is that the effect of C02 on temperature? A: No, this is the tendency for a higher...
Well, I think this posting reaches a new low, for several reasons. First, Susan Solomon never said that her work validates the iris hypothesis....
To the extent that I understand what you said, I don't think I disagree. But: It's impossible to attribute a single weather event to climate...
Well, we're not going to have any sort of reasoned debate on this, judging from the tone of the material that was posted. But in the interest of...
They don't look like they build particularly "green" houses, but: Even with a small battery (5 KWH) to charge, a dedicated 120V 20A circuit would...
February 2010 update. Numbers subject to revision: ______A____B____C___JAN_ FEB RSS 0.550 0.614...
That was a difficult article to make any sense of. In the first four paragraphs, what the author said was: Some glaciers are growing. Yep,...
