Something to think about...

The articles discussed in my blog about ABCs state that ‘global’ dimming has masked some of the impacts of global warming during the 20^th century. With stricter regulations being put in place to reduce aerosol emissions how could this affect the world’s climate and glacial retreat in the future? Could it:

1)      Cause rises in global mean temperatures as the opposing dimming force is reduced. As a result feedbacks cause a further increase in the rate of glacial retreat?

Or,

2). Cause rises in global mean temperatures, but because atmospheric solar heating is reduced, glacial retreat decreases slightly as local surface heating at higher altitudes is lower?

And if, reducing local aerosol pollution to improve air quality results in enhanced global warming, how are policy makers going to weigh these decisions up against each other?

Just something to think about until my next post.