Tidal gauges along the Portuguese coast have identified a rise in sea levels, causing large estuaries and inland deltas in some major rivers to overflow.
tiDal GAUgES AloNG the PORTUgueSe cOast have IdenTIFied A rise In sea leVelS, CAusing lARgE estUarIes AND INlaNd DELtAs in sOME mAjor riVerS To overfLOw.