> Meanwhile China makes more solar panels than anyone in the world yet has the most filthy air. Most overall or per capita? And do they use them? If the clean

> Meanwhile China makes more solar panels than anyone in the world yet has the most filthy air. Most overall or per capita? And do they use them? If the cleaners at Grand Central Station use only twice the cleaning supplies as you do at your house, it's likely to be much dirtier than your house.