Study maps changes in Earth's surface over 30yrs
According to a study, 1,15,000 square kilometer of land has become water and 1,73,000 square kilometer of water has become land over the last 30 years. The Tibetan Plateau and the Aral Sea have witnessed largest conversions to water and land respectively. Increase in dams, creation of coastline-houses and diversion of rivers for irrigation were held responsible for this shift.