Transportation sector CO₂ emissions in the U.S. 1980-2021, by state
U.S. transportation CO₂ emissions.
Texas and California have consistently been the two biggest transportation-related carbon polluters in the U.S. In 2021, they emitted 215 and 179 million metric tons of carbon dioxide (MtCO₂), respectively. Combined, these two states – the most populous in the U.S. – account for almost a quarter of total