U.S. energy-related carbon dioxide emissions increase in past two years

For the second year in a row, energy-related carbon dioxide (CO2) emissions in the United States have increased. However, unlike 2013, when emissions and gross domestic product (GDP) grew at similar rates (2.5% and 2.2%, respectively), 2014's CO2 emissions growth rate of 0.7% was much smaller than the 2014 GDP growth rate of 2.4%. More »