Global 'sunscreen' has likely thinned, report NASA scientists

A new NASA study has found that an important counter-balance to the warming of our planet by greenhouse gases – sunlight blocked by dust, pollution and other aerosol particles – appears to have lost ground.

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<p><a href="http://www.physorg.com/news93190359.html">Global 'sunscreen' has likely thinned, report NASA scientists</a></p> <p>A new NASA study has found that an important counter-balance to the warming of our planet by greenhouse gases – sunlight blocked by dust, pollution and other aerosol particles – appears to have lost ground.</p>