Greenhouse gases from reservoirs
Deemer and colleagues estimated reservoir water surfaces emit about 0.8 Pg CO2-equivalent per year, mostly as methane, with reservoir productivity the best predictor of emissions.
As reported in: Deemer, Harrison, Li et al. (2016). Greenhouse Gas Emissions from Reservoir Water Surfaces: A New Global Synthesis. BioScience. doi:10.1093/biosci/biw117