Baltic Slurry Acidification (March 2016 – February 2019) aimed to promote the implementation of slurry acidification techniques throughout the Baltic Sea Region. Slurry acidification techniques (SATs) reduce the ammonia losses from livestock manure and thus reduce airborne eutrophication of the Baltic Sea. The use of SATs provides clear environmental benefits for the region. The use of SATs also benefits farmers by increasing the nitrogen use efficiency of their manure fertilizers and thereby decreasing their dependency on mineral nitrogen.