IRIN: Models to predict the impact of climate change on potable water and the management of wastewater are needed to deal with the expected increase in water-related illnesses as result of global warming, says a new policy brief by the United Nations University (UNU). “We need greater investment in the development of models to aid decision-making, reduce uncertainty and augment costly monitoring programmes,” said Corinne Wallace, a leading water health researcher at UNU’s International …