Month by month, clean is better.
Although it’s taken more twenty years, the New England Journal of Medicine reports that cleaner air in 51 metropolitan areas has added nearly five more months to people’s lives.
Cleaning up Pittsburgh’s air has given residents nearly 10 months of longer life.
Long-term exposure to dirty air — specifically, the tiny specks known as fine-particulate air pollution — shortens lives and contributes to cardiovascular and lung disease. CNN