The four labor unions and two environmental organizations that comprise the Blue Green Alliance worked intensively during the fall of 2008 and winter of 2009 to craft a joint statement on comprehensive climate change policy. The United Steelworkers, Sierra Club, Communications Workers of America, Natural Resources Defense Council, Laborers International Union of North America, and Service Employees International Union together released a policy statement on climate change and energy in late March. The goal of this undertaking is to articulate a framework by which the United States can rapidly put millions of Americans back to work building a clean-energy economy and reducing global warming emissions to avoid the worst effects of climate change.