Brazil faces water disaster; scientists warned it was coming thumbnail Brazil’s largest city is facing a water shortage this year unlike it has seen in decades — a potential disaster scientists have warned about as far back as the 1980s. The metropolitan area of Sao Paulo, the world’s 12th-largest metro population at more than 20 million, is served by two main natural water systems — the Cantareira and Alto Tiete reservoir networks, which barely have any water in them, The Guardian reported this week . The Cantareira is only 5 percent full, and the Tiete is at less than 15 percent of capacity. This is an issue that water conservation advocates and scientists have warned about for decades. The Brazilian government has undertaken moderate efforts over the last 25 years to improve the drought conditions but they have had a limited impact. Experts say the drought could be catastrophic, […]