Good news on the green front: BREEAM, LEED, Green Star (the system developed and administered by the Green Building Council of Australia) and the U.K. Green Building Council are uniting for the common goal of rating and measuring carbon emissions. Yesterday, the organizations signed a memo of understanding to map and develop common metrics to measure emissions of CO2 equivalents from new homes and buildings. The overriding aim is to provide consistency in measurement and reporting. Says Rick Fedrizzi, president CEO and founding chairman of USGBC "The MOU sets the stage for true progress by focusing on performance that is measurable and verifiable. As we work to alleviate the role buildings play in climate change—nearly 39 percent of greenhouse gas emissions in the United States—it's vital that we are able to measure carbon emissions in a consistent, reliable way."