Woods Hole Oceanographic Institution
Sea levels in coastal areas can be affected by a number of factors: tides, winds, waves, and even barometric pressure all play a role in the ebb and flow of the ocean. For the first time, however, a new study has shown that river outflow could play a role in sea level change as well. More here.
Vietnam's Mekong Delta. The Mekong, the world's 12th longest river, fans out into tributaries and empties into the South China Sea in Southeast Asia. European Space Agency