Scientific American published this with a straight face.


Cleaning Up Air Pollution May Strengthen Global Warming
New research is helping quantify just how big that effect might be
By Chelsea Harvey
ClimateWire
January 22, 2018

Pollution in the atmosphere is having an unexpected consequence, scientists say—it's helping to cool the climate, masking some of the global warming that's occurred so far.

That means efforts worldwide to clean up the air may cause an increase in warming, as well as other climate effects, as this pollution disappears.

New research is helping to quantify just how big that effect might be. A study published this month in the journal Geophysical Research Letters suggests that eliminating the human emission of aerosols—tiny, air-polluting particles often released by industrial activities—could result in additional global warming of anywhere from half a degree to 1 degree Celsius.

This would virtually ensure that the planet will warm beyond the most stringent climate targets outlined in the Paris climate agreement. World leaders have set an ambitious goal of keeping global temperatures within 1.5 to 2 degrees Celsius of their preindustrial levels. But research suggests the world has already warmed by about 1 degree—meaning even another half a degree of warming could push the planet into dangerous territory.

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https://www.scientificamerican.com/artic...global-warming/



The Study:
Climate Impacts From a Removal of Anthropogenic Aerosol Emissions
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In the present study, we use idealized scenarios simulated by four global, fully coupled atmosphere-ocean-composition climate models to separate the climatic effects of aerosol emission mitigation from those of continued, moderate greenhouse gas-induced warming. In the following, we show the simulated responses to a removal of anthropogenic emissions of sulfate and carbonaceous aerosols (black and organic carbon), compared to moderate (1.2–1.7°C) GHG-dominated warming, in terms of global and regional temperatures, precipitation, and extreme weather indices. We also investigate the sensitivity of key climate variables to the two types of forcing.
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http://onlinelibrary.wiley.com/doi/10.1002/2017GL076079/full