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Global Dimming

July 6, 2011

The BBC video presentation is at

Part 1:http://www.youtube.com/watch?v=rkJUJ5-PL-0

Part 2: http://www.youtube.com/watch?v=AsDNmDyPLDk

Part3: http://www.youtube.com/watch?v=ZC4PR24BIc8

Part4: http://www.youtube.com/watch?v=37SAFkvz6uY

Full Article at http://www.bbc.co.uk/sn/tvradio/programmes/horizon/dimming_trans.shtml

NARRATOR (JACK FORTUNE): This is a film that demands action. It reveals that
we may have grossly underestimated the speed at which our climate is changing.
At its heart is a deadly new phenomenon. One that until very recently scientists
refused to believe even existed. But it may already have led to the starvation
of millions. Tonight Horizon examines for the first time the power of what
scientists are calling Global Dimming.

<snip>

NARRATOR: Burning fuel doesn’t just produce the invisible greenhouse gases
which cause global warming. It also produces visible pollution, tiny airborne
particles of soot and other pollutants. These produce the haze which shrouds our
cities. So Ramanathan wondered: Could this pollution be causing Global Dimming?
The Maldives were the perfect place to find out. The Maldives seem unpolluted,
but in fact the northern islands sit in a stream of dirty air descending from
India. Only the southern tip of the long island chain enjoys clean air coming
all the way from Antarctica. So by comparing the northern islands with the
southern ones, Ramanathan and his colleagues would be able to see exactly what
difference the pollution made to the atmosphere and the sunlight. Project
INDOEX, as it was called, was a huge multinational effort. For four years every
possible technique was used to sample and monitor the atmosphere over the
Maldives. INDOEX cost twenty-five million dollars, but it produced results – and
they surprised everyone.

Full Article at http://www.bbc.co.uk/sn/tvradio/programmes/horizon/dimming_trans.shtml

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