Residential and commercial heating and cooling contributed 29.5 million metric tons of carbon dioxide equivalent to Massachusetts’ emissions in 1990, or about 15% of total GHG emissions. The newest draft of the state's Clean Energy and Climate Plan (CECP) now calls for a 49% emission reduction by 2030 relative to 1990 in the heating sector (virtually the same percentage decrease as the economy-wide target of 50%). For the last several years, we have seen emissions fall significantly from wi...
