Lake O'Hara in Yoho National Park (IMAGE) University of British Columbia Okanagan campus Caption When it comes to freshwater availability, more than 75 per cent of the world's total water supply is found in only three countries -- China, Canada and Russia. Credit UBC Okanagan Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.