David and members of his group work to further uncover the role of freshwater ecosystems in regional and global carbon cycles, while linking human use of water resources to the sustainability of aquatic environments. 

Research Questions:

How have human land use decisions altered freshwater carbon cycling from the small stream to global rivers? 

How do we count freshwater carbon cycling in regional and global carbon budgets?

What are the effects of large scale river restorations through the removal of historical dams on carbon and nutrient biogeochemistry?

Will climate change increase the connectivity of terrestrial and aquatic ecosystem?