What's up in
Water World
Oceans, rivers, polar ice, water systems, marine life, and the environmental changes affecting the planet's blue and frozen regions.
Tuvalu will always be a state, even if underwater, says PM
Turkey seeks new life for submerged tourist town
Tunisia water shortages spark 'thirst uprising' warning
Trump repeals Obama-era waterway protections
Tropical fish swim into Europe's waters as common species head north
Trawling is changing seafloor habitats: study
Trash clogs DR Congo hydroelectric plant
Trail of melting Swiss glacier shows climate change in action
Tokyo to test artificial snow to cool Olympic spectators
To dam or not to dam? Pakistan experts ponder flood strategy
