Control the Pollution, Make the World Sustainable
Investigating human connections to water and sustainable development through environmental monitoring and assessment
an understudied river despite contributions to the global river discharge and carbon fluxes. Little is known about the mechanisms underlying temporal variations in CO2 dynamics of the lower Ganges integrating upstream influences of damming and pollution. High-frequency CO2 and O2 measurements were combined with dissolved organic matter characterization to show concurrent increases in CO2 and terrestrial organic matter during monsoon floods contrasting with phytoplankton-driven diurnal variations in CO2 uptake and O2 production during dry months. Despite large temporal variations, the lower Ganges acted as a source of CO2 throughout the year. Increasing hydrologic variability and nutrient input can amplify the large seasonal variations in CO2 emissions from the Ganges.