Call me a skeptical cynic, but when I see a story about
the views of Bjorn Lomborg, and written by
Bjorn Lomborg, my BS antennae are highly activated.
A much more fascinating and balanced look at our present climatic situation was broadcast Tuesday evening on the PBS program, Nova. Entitled "Dimming the Sun," it investigated the measurable decrease
radiation reaching the earth's surface in the last thirty years or so.
At first blush, this seems counter-intuitive given the, also measurable, increase
in greenhouse gases and temperature (global warming) at the same time.
The cause of the solar
dimming has been traced to the pumping of small particulate pollution into the atmosphere. The tiny particulate pollution attracts moisture in the atmosphere, and the resultant droplets act as minute mirrors, reflecting some of the sun's radiation back into space.
How much? About 25%!
The irony is that the solar dimming has mitigated the full impact of the concurrent global warming, thus lessening the worst effects of increasing temperatures. However, further irony lies in the consequences of mankind's attempts (measurably successful) to lessen the production and release of small particle pollution. Thus, in reducing such pollution, we expose ourselves to the full impact of global warming, whatever its cause.
Sort of a "damned if you do, and damned if you don't" scenario.
Here's a link to the "Dimming the Sun" homepage:
NOVA | Dimming the Sun | PBS
And here's a link to the "TV Program Description" page:
NOVA | Dimming the Sun | TV Program Description | PBS