On April 10, California Gov. Jerry Brown (D) signed a two-year agreement with Chinese Minister of Environmental Protection Zhou Shengxian to collaborate on air pollution reduction tactics and technology. Designed to cut air pollution while still spurring economic growth, the pact includes measures to collaborate on research projects, to host joint training sessions, and to share regulatory policies. Gov. Brown signed the agreement while on a six-day mission to China to discuss investment and trade issues.