The omission was appropriate because waste-to-energy projects like this are neither renewable nor green; they are, in fact, wastes of energy projects. Why? It is far more efficient to recycle than it is to burn and then re-fabricate. Trash incinerators are prime examples of dirty energy; they spew cancer-causing dioxins and other pollutants such as heavy metals into the air we breathe as well as lots of greenhouse gases. They are, in fact, more polluting than coal-fired power plants! Ironically, Maryland's Renewable Portfolio Standard currently incentivizes trash incineration. For these reasons, the Sierra Club and other progressive organizations are working for legislation to strip harmful technologies such as waste incineration from the RPS while increasing its collective standard so that it does not incentivize polluting monstrosities like trash incinerators.