Greenhouse gas emissions in Massachusetts decreased from 2013 to 2014, continuing a decade-long trend, according to the latest state data.State law requires emissions by 2020 that are 25 percent lower than 1990 levels, and emissions in 2014 were 21 percent below 1990 levels, according to the Department of Environmental Protection (DEP). Economy-wide emissions in 1990 were estimated at 94.4 million metric tons of carbon dioxide equivalents.The updated data contains a [...]
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