Conley, Daniel J. (2012): Ecology: Save the Baltic Sea
Conley, Daniel J. (2012): Ecology: Save the Baltic Sea. In: Nature 486 (7404), pp. 463–464.
Not close climate engineering, but connected. "Several large-scale geoengineering interventions have been proposed as solutions to this problem [of the Baltic Sea]. [...] But they could also be dangerous."