The nation’s coal fleet supports grid reliability and resilience, provides fuel security and fuel diversity, and produces affordably priced electricity. Nevertheless, detractors want to eliminate the coal fleet because of its carbon dioxide (CO2) emissions.[i] We think the goal of eliminating the fleet is unrealistic and wildly out of proportion to its CO2 emissions … especially considering the benefits of having a coal fleet. In that spirit, we’re offering some numbers that provide a different perspective on coal fleet emissions.
- According to the Energy Information Administration (EIA), the coal fleet is only the number three source (26 percent share) of energy-related CO2 emissions in the U.S. economy. Transportation is first (45 percent) and natural gas is second (29 percent).[ii]
- The U.S. coal fleet emitted 1.15 billion metric tons (tonnes) of CO2 in 2018.[iii] Global anthropogenic greenhouse gas (GHG) emissions are estimated to be in the range of 49 billion tonnes.[iv] This means the U.S. coal fleet is responsible for slightly more than 2 percent of worldwide anthropogenic GHG emissions and, therefore, other sources are responsible for 98 percent.
- U.S. GHG emissions totaled almost 6.5 billion tons in 2017.[v] This means the coal fleet emits roughly 17 percent of U.S. emissions, and other U.S. sources were responsible for 83 percent.
- According to the International Energy Agency (IEA), the U.S. has achieved the largest reduction in energy-related CO2 emissions of all other countries since 2000.[vi]
- China and India together emitted 14.36 billion tonnes of energy-related CO2 last year.[vii] This amount is three times greater than U.S. energy-related CO2 emissions (4.89 billion tonnes) and more than 12 times greater than emissions from the U.S. coal fleet (1.15 billion tonnes).
- Last year, energy-related CO2 emissions increased worldwide by 560 million tonnes.[viii] Simply offsetting this increase would require the elimination of all CO2 emissions from New York and California.[ix]
- China was responsible for exactly half (280 million tonnes) of last year’s global emissions increase. China’s increase was greater than the total CO2 emissions from all but two U.S. states (Texas and California).[x]
- Also, the worldwide increase last year (560 million tonnes) was roughly half the emissions from the entire U.S. coal fleet (1.15 billion tonnes). The U.S. would have to eliminate half of its coal fleet simply to offset emission increases from other countries. Replacing half the U.S. coal fleet with wind, for example, would cost approximately $169 billion.[xi]
Our reason in presenting these numbers is not to start another argument but rather to paint a broader picture, which is the right way to address GHG emissions, rather than trying to eliminate the coal fleet. Worldwide, coal is the largest source (38 percent) of electricity and the second largest source (26 percent) of primary energy.[xii] Eliminating coal is simply unrealistic. Better technologies—some available today, some to come—are the best strategy to reduce CO2 emissions from the coal fleet. After all, better technologies are the main reason each kilowatt-hour of electricity generated today emits 90 percent fewer conventional air pollutants compared to several decades ago.[xiii] However, these technologies took time and a sustained effort, but the environmental payoff was worth it. Let’s try to apply that same lesson to reducing CO2 emissions.