"The Natural Philosopher" wrote in message
...

There is further evidence for these effects if you are actually
interested.. you could look at the effects of some of the volcanoes that
cause high level cloud and consequential cooling. Laki would be a good
start as its eruption killed millions due to cooling.

Dust is an effective screener of sunlight. But its all part of a giant
complex system - one that is far more complex than the IPCC want you to
BELIEVE.

Laki didn't put lots of dust into the high level atmosphere, it put SO2
there. This made lots of cloud cover and the resulting cold winters killed
millions.


We do now have satellites measuring the overall Earth's albedo IIRC by the
way: the data is slowly coming in..