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BLACKSTONE BAY
HENEY GLACIER
VALDEZ GLACIER
HUGH MILLER GLACIER
HENEY GLACIER
The lower Heney's blanket of dirt is thick enough to provide some insulation. But the local average temperature has risen almost 4 degrees F since the 1950s, and the glacier is melting.
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1937 Because this photo was taken in June (unlike the 2006 photo, taken in September due to poor summer weather), early spring snow hides much of the ice from view. |
2006 Glacial thinning has occurred at higher elevations and at the Heney's terminus, which is about half its 1937 width. The McCune Glacier (boxed) is disappearing. |
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Buildings, and their need for light, power, and heat, account for 48% of America's CO2 emissions.
Better design would bring a 50 to 80% energy (and emissions) savings. By 2035, three quarters of the
nation's built environment will
be new or renovated. And building it green doesn't have to be a sacrifce: During
the 1970s oil crises, the nation was able to decrease energy consumption and CO2
emissions, while still increasing the Gross Domestic Product by more than one
trillion dollars. |
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