Mediterranean Sea, nutrient, stratified estuary
trends, South America, Amazon, Altiplano, Standardized precipitation index, Standardized precipitation evapotranspiration index
trends, precipitation, Variability, temperature, ENSO, Ecuador
Human ecology, Sustainable development, Environmental Economics, development, etc, Handbooks, manuals, BUSINESS & ECONOMICS, Estudio y enseñanza, Estudio y enseñanza