CO2 concentration...from the attached NOAA article...
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Even though the United States no longer leads the world in total annual carbon dioxide emissions, it was still, as of 2021, releasing about 5 billion metric tons of carbon dioxide per year, which was about 13.49 percent of the total global emissions—more than twice that of all 28 countries in the European Union combined.
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We can't ease off on the 'EV pedal'...
Link: https://www.climate.gov/news-features/climate-qa/does-it-matter-how-much-united-states-reduces-its-carbon-dioxide-emissions#:~:text=Even%20though%20the%20United%20States,countries%20in%20the%20European%20Union