(1) Deemer and her colleagues note that many studies don’t sample emissions thoroughly enough both across reservoir surface area and over time.
(2) It is challenging to measure reservoir emissions because so many factors can play a role, Deemer acknowledges.
(3) But analysis by Deemer and her colleagues shows that the latitude and depth of water are not leading factors.
(4) I think this study shows that dams as a source of energy aren’t without their greenhouse gas costs,” says Bridget Deemer, a research ecologist at the US Geologic Survey, who led the study during her prior position as a research associate at Washington State.