Ice core sulfur and methanesulfonic acid (MSA) records from southern Greenland document North American and European air pollution and suggest a decline in regional biogenic sulfur emissions

Pasteris, D. R., McConnell, J. R., Burkhart, J. F., (2014). Ice core sulfur and methanesulfonic acid (MSA) records from southern Greenland document North American and European air pollution and suggest a decline in regional biogenic sulfur emissions, AGU Fall Meeting: San Francisco, December 15, 2014-December 19, 2014, Abstract C13A-0418