Need to label the USA, China and Russia. I know what bubbles these correspond to, but you absolutely need to label these major countries even if you have to remove other labels to keep the graph from getting too busy.

Kuwait data looks really faulty. They're not doing anything radically different than other Gulf States in reducing pollution deaths. More likely, they're underreporting deaths or they're more effective at shipping foreign workers out of the country once they get sick. Probably both.

Egypt is an outlier because of all the tourism income while also having atrocious air quality.