Yesterday, during the White House Water Summit, the federal agencies that comprise the National Nanotechnology Initiative (NNI) announced the launch of a new Nanotechnology Signature Initiative (NSI): “Water Sustainability through Nanotechnology: Nanoscale Solutions for a Global-Scale Challenge.” This NSI will focus on research and development of nanoengineered materials that reduce stress on the national water supply and support sustainable water usage. The goal of NSIs is to speed innovation through interagency cooperation. The properties of nanomaterials are advantageous for the development of more efficient purification systems and more durable infrastructure. More information can be found on the NNI website, White House blog, and White House fact sheet.