New Delhi, July 2 -- A new analysis shows 73% of all non-marine UNESCO World Heritage Sites are exposed to at least one severe water risk (water stress, drought, river flooding or coastal flooding), with 21% of sites facing dual problems - having too much water one year, and too little during another. The analysis based on World Resources Institute's Aqueduct data (water risk atlas) flagged that several sites in India are among those experiencing severe risks, including the Taj Mahal, Kaziranga National Park, Western Ghats, Group of Monuments at Mahabalipuram, and the Great Living Chola Temples among others. Around 40% of the UNESCO sites are facing issues related to water stress while 33% and 4% respectively face challenges from riverine flood risk and coastal flood risk. "The Taj Mahal...faces water scarcity that is increasing pollution and depleting groundwater, both of which are damaging the mausoleum," the analysis states. WRI's mapping shows Sun Temple in Konark; victorian gothic and art deco ensembles in Mumbai; churches and convents of Goa; Western Ghats etc in India are at extremely high risk of riverine flooding. Drought risk is high for Qutub Minar; Keoladeo national park; Rani ki Vaw stepwell in Gujarat; and Chola temples in Mahabalipuram....