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Tropical inland waters emit 29–79% less greenhouse gas than thought, with rivers and lakes contributing significantly but less than earlier models showed.
A new international study led by Charles Darwin University finds tropical inland waters emit 29 to 79 percent less greenhouse gas than previously thought, with rivers contributing about 46 percent and standing waters like lakes and reservoirs accounting for roughly 8 percent of global inland water emissions.
The research, based on data from diverse tropical regions including the Amazon and Congo basins, shows emissions vary widely due to climate, landscape, and human activity, with agriculture increasing nutrient and organic matter inputs.
While tropical waters remain significant sources of greenhouse gases, their actual impact is lower than earlier models indicated, and future emissions may rise due to population growth and land-use changes.
The findings, published in Nature Water, aim to improve climate modeling and inform conservation strategies.
Las aguas interiores tropicales emiten un 29-79% menos de gases de efecto invernadero de lo que se pensaba, y los ríos y lagos contribuyen significativamente, pero menos de lo que mostraban los modelos anteriores.