Consider this: The total emission amount of the entire East Coast of the US is much bigger than that of California. Since the total amount (and not per capita)

Consider this: The total emission amount of the entire East Coast of the US is much bigger than that of California. Since the total amount (and not per capita) is what matters, we should focus on how to lower the East Coast's emissions and pay less attention to California. In other words, one can look at "China" as just a big inclusion circle around a group of people.