The above is Arctic land snow cover in June. This hasn't gotten as much coverage as the sea-ice, but it's collapsing too and it's probably even more important. The total area lost is larger, and the land is at lower latitude than the Arctic ocean (ie higher sun angle), so the amount of extra absorbed sunlight being introduced into the top of the planet is likely larger due to land snow loss than sea ice loss.
For those of you in cold places, if you have ice dams or big icicles hanging off your roof, it means your attic is leaking far too much heat; that's a waste of energy. This article has a good simple overview of the do-it-yourself approach to fixing it.
stuart, perhaps you meant to link to this; http://earthobservatory.nasa.gov/IOTD/view.php?id=80102&src=ve
someone complained about heat escaping from a chimney in one of the comments at this old house...
one could use a triple lined stovepipe (some come with diameters of 6,7, & 8 inches) and use the outer layer as an air intake from the roof...as the hot air rises through the inner pipe, it is cooled by outdoor air pulled down the stack; conversely, the outdoor air is heated as it's pulled down the stack to the indoors; as a result, one has very little heat loss from your stove's chimney...
Due to day round sunlight insolation at high latitudes is much higher in Summer than usually thought. You may want to do a reality check on the first point.
I'm a scientist and innovator in the technology industry, with a broad range of interests and experiences. I have a Physics PhD, MS in CS, and have done research, lived in cohousing communities, run a business, and designed technology products. Professionally, I have mainly worked on computer security problems, with a particular focus on computer malware control. Currently I mainly do expert witness work, and run a green property company. The blog represents my views only.
Email me at stuart -- at -- earlywarn -- dot -- org. I do read all email, but because the blog is a part-time unfunded enterprise, I often fail to reply due to lack of time - apologies.
4 comments:
This is an article up your ally.
http://www.newgeography.com/content/003389-globalization-too-many-americans-are-dropping-under-radar
Nothing new here, but a pretty interesting site.
stuart, perhaps you meant to link to this; http://earthobservatory.nasa.gov/IOTD/view.php?id=80102&src=ve
someone complained about heat escaping from a chimney in one of the comments at this old house...
one could use a triple lined stovepipe (some come with diameters of 6,7, & 8 inches) and use the outer layer as an air intake from the roof...as the hot air rises through the inner pipe, it is cooled by outdoor air pulled down the stack; conversely, the outdoor air is heated as it's pulled down the stack to the indoors; as a result, one has very little heat loss from your stove's chimney...
rjs - thx, fixed.
Due to day round sunlight insolation at high latitudes is much higher in Summer than usually thought. You may want to do a reality check on the first point.
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