Long term North Atlantic surface temperature fluctuations linked to aerosols

(PhysOrg.com) -- Manmade pollution doesn’t always cause atmospheric warming, a group of researchers from Britain’s Met Office Hadley Centre, write in their paper published in the journal Nature, sometimes it causes cooling. That’s because, they say, manmade aerosols injected into the atmosphere can cause heat from the sun to be reflected back into space. The team has made this observation after studying the impact of aerosols on the temperature of the air just above the surface of the North Atlantic over the past century and a half, which has a decades-long cycle of rising and lowering.

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