Sustainable in Suburbia


So how big is your footprint?
November 13, 2006, 11:55 pm
Filed under: Blogroll

Earth Day Footprint Quiz

CATEGORY GLOBAL HECTARES
FOOD 1.6
MOBILITY 0.6
SHELTER 2.1
GOODS/SERVICES 2.1
TOTAL FOOTPRINT 6.4

IN COMPARISON, THE AVERAGE ECOLOGICAL FOOTPRINT IN YOUR COUNTRY IS 7.6 GLOBAL HECTARES PER PERSON. WORLDWIDE, THERE EXIST
1.8 BIOLOGICALLY PRODUCTIVE GLOBAL HECTARESPER PERSON.

IF EVERYONE LIVED LIKE YOU, WE WOULD NEED 3.6 PLANETS.

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Poles apart, and melting
November 13, 2006, 9:54 am
Filed under: Uncategorized

Richard Macey
November 13, 2006

THE volume of ice at both ends of the world appears to be shrinking.
Earlier this year a study of Antarctica’s ice sheet found it had lost about 152 cubic kilometres of ice a year since April 2002.
Now NASA scientists who have mapped Greenland’s total ice volume say it too is on a “downward slide”, with losses caused by melting, and the breaking of ice sheets into icebergs, far surpassing gains from new snowfalls.
They estimated that between 2003 and last year 54 billion tonnes of ice formed annually in Greenland’s interior.
However, its coastal regions lost about 155 billion tonnes a year.
As a result the island suffered an annual net ice loss of more than 100 billion tonnes - equal to a shrinkage of about 112 cubic kilometres a year.
“In the 1990s the ice was very close to balance, with gains at about the same level as losses,” said Scott Luthcke, of NASA’s Planetary Geodynamics Laboratory.”That situation has now changed significantly, with an annual net loss of ice equal to nearly six years of average water flow from the Colorado River.”

Read the rest of the article at Poles apart, and melting - World - smh.com.au

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