According to research undertaken by Transportation ( US PIRG) transportation is the major contributor to carbon emissions in the country for the first time in the 12 months to April 2016 . Data from over 40 years shows transportation being responsible for more emissions than the electric power, industrial, residential, and commercial sectors. Regulators now believe carmakers may miss the original target of 54.5 mpg (equivalent to about 40 mpg on the window sticker) by 2025, due to a combination of low gas prices and high demand for SUVs. One of the main reasons for the change is probably that coal power plants are being retired in the U.S. and replaced with natural gas and renewable energy sources.
According to research undertaken by Transportation ( US PIRG) transportation is the major contributor to carbon emissions in the country for the first time in the 12 months to April 2016 . Data from over 40 years shows transportation being responsible for more emissions than the electric power, industrial, residential, and commercial sectors. One of the main reasons for the change is probably that coal power plants are being retired in the U.S. and replaced with natural gas and renewable energy sources.