Keywordssea level rise; climate change; salinity intrusion; flushing time; residence time; model simulation; hydrodynamics; Wu River estuary; climatic variation; reference evapotranspiration; Penman–Monteith method; Hai River Basin; water demand; Colorado Equilibrium Displacement Positive Mathematical Programming model (Colorado EDMP); small open economy; food and energy; rainfall trends; land use; reforestation for water production; Great Lakes; Lake Michigan-Huron; water levels; precipitation; near-decadal cycles; climate variability; lake water quality; flooding; optical spectroscopy; climate change; precipitation; general circulation models (GCMs); representative concentration pathways (RCP); Lake Victoria; allochthonous dissolved organic carbon; atmospheric acid deposition; climate change; phenolic compounds; drinking water; SWAT; climate change; water resources; NW Spain; vulnerability index; water resources stress; development pressure; ecological health; management capacity; climate change; adaptation; mitigation; Al Jabal Al Akhdar; Oman; SWAT; scaling; regionalization; nutrient loss; climate change; land use change; climate change, evapotranspiration, irrigation water requirement; water allocation market; price clustering; uncertainty; strategic behavior; Artificial Neural Network; lag response model; rainfall and stream flow; wavelet coefficient; Akaike Information Criterion; water quality; sensitivity; ELCOM-CAEDYM