Satellite data that helps fight cholera. Forecasts that help farmers flee monsoons. Models that predict how shifting rivers can affect drinking water. Scientists worldwide are developing technologies like these to tackle the planet’s biggest water challenges, such as the lack of clean water for 1.2 billion people and the rising threats of deadly downpours, droughts and flooding caused by climate change. SEE ALSO: Coca-Cola says it ‘replenished’ all the water it used to make its…