Per capita, we’re the worst polluter in the world.
We're a highly industrialized country that has an extremely spread-out population across the 2nd largest geographic country in the world that has cold winters. It's not like we're just wasteful polluting a-holes. We're going to be higher than the vast majority of countries in per capita emissions no matter what.
We also have a ton of high-carbon oil reserves and an oil-dependent economy.
Again, we have 38 million people out of 7 billion. Climate change doesn't care about per capita, it cares about total global emissions. We have to do our part but we also shouldn't compare ourselves 1-to-1 to ie: most European countries.