A three-year drought in Haiti threatens millions of people with hunger, the United Nations warned, while the contaminated water used to grow vegetables in Tanzania’s cities places consumer health at risk. After two years of drought, barges are once again traveling on a key waterway used to transport agricultural products in Brazil. A leak of radioactive water continues at a nuclear power plant in New York, and a drop in hydropower production during California’s drought left consumers paying higher energy bills. U.S. lawmakers moved forward with a bill to improve federal responses to lead-contaminated drinking water, and researchers released a new r