Debate Desk
Must America Cut Emissions First Because It Is the Biggest Polluter?
America is not the largest annual emitter, and its emissions per dollar of output have fallen; global emissions turn on Asia and the developing world.
The claim
America has emitted more carbon dioxide than any other country over the last century and a half, and its emissions per person are high. Moral responsibility, critics say, requires it to cut first and fastest, whatever others do.
The answer in three points
- Historic emissions came with historic gains in prosperity, health and longevity, which the whole world shares through trade, medicine and technology. The question for policy is what reduces future emissions at the least cost, not who is to blame for the past.
- Annual emissions now come mainly from elsewhere. China alone emits more each year than the United States, and the growth in global emissions is in Asia. Cuts at home matter little unless the largest and fastest-growing sources change course.
- American emissions have fallen while the economy grew. Natural gas, efficiency and nuclear power did it, and spreading these to other countries is a larger contribution than unilateral hardship. Helping India and others use gas and nuclear power instead of coal would cut more carbon than a decade of American mandates.
Cutting emissions where it is cheapest and most effective is common sense, and that often means helping others use cleaner technology. A policy that measures results in tons of carbon and not in gestures is one that conservatives can defend.
The numbers
- The Energy Information Administration reports that U.S. energy-related carbon dioxide emissions in 2023 were about 17 percent below the 2005 level.
- The Global Carbon Project reports that China accounts for about 30 percent of global fossil carbon dioxide emissions, and the United States for about 13 percent.
- The Environmental Protection Agency reports that emissions of the six common air pollutants fell by more than 70 percent between 1970 and 2020, while the economy more than tripled.
What they will say next
"Per person, we emit far more than China." True, and America is also richer and bigger in energy use per person. For the climate, the total matters, and the cheapest cuts are where emissions are growing.
"Cumulative emissions are what warm the planet." They are, and the future matters more than the past. We cannot subtract historical emissions, and new ones are the ones policy can change.
"A leader must show the way." America has shown a way: abundant gas, nuclear technology and innovation. A leader who impoverishes his own people by example finds few followers.
"Carbon tariffs would level the field." Some conservatives are open to border adjustments and some are not, because they raise prices and invite trade retaliation. The debate is real.
Responsible stewardship means results measured in tons and dollars, not in gestures.
"Developing countries need our help to cut emissions." They do, and the most effective help may be technology, finance for efficient gas and nuclear power, and open trade. Those steps cut more carbon than pledges and they help poor countries grow.