Gregory Pierce, associate director of research at the Luskin Center for Innovation, spoke with 20 Questions About Water about access to clean water in the United States and around the world. Pierce, an adjunct assistant professor of urban planning, said the percentage of people with access to clean water has increased but the raw number has not due to population growth. Pierce believes the government should be responsible for providing water at the local level.  When governments have insufficient resources or are beset by corruption, a coalition of private companies, NGOs, the government and the community should be formed to provide real solutions, he argued. In the next 100 years, Pierce believes, water will become more decentralized and investments in water resources and technology will pay off.  He encouraged citizens concerned about access to clean water to pressure decision-makers to take action.