I explore and identify various opportunities to reduce emissions of nutrients - mainly nitrogen and phosphorus - to the Baltic Sea. I focus on emission sources such as agriculture, sewage, and fossil fuel combustion.
One way to reduce nitrogen and phosphorus inputs to the sea is by using fertilizers and manure more efficiently in the cultivation of crops. I build "nutrient budgets" to identify the areas with excess nutrients that can potentially leak into the Baltic Sea.
I also try to understand how historical fertilization practices and sewage treatment have led to the accumulation of “legacy” nutrients, especially phosphorus, in soils, lakes, and streams. These legacy nutrients can leak for decades, potentially complicating efforts to restore the Baltic Sea.
I am an aquatic ecologist and biogeochemist by training. Earlier in life, I worked in corporate accounting and finance, but I left the business world to become a scientist because I was concerned about the state of the environment. I became fascinated with nitrogen and phosphorus when I realized that scientists track and analyze these important nutrients in the environment in much the same way that businesses do with money.