“A few weeks back, Tennessee’s Chattanooga Metropolitan Airport (CMA) became the first US airport powered by 100% solar energy. The news was shared by the CMA on its Twitter account and spread through a good amount of coverage on a number of media outlets.
Interestingly, back in 1969, Chattanooga, Tennessee’s fourth-largest city, was declared to be the dirtiest in the United States due to high levels of ozone, particulates and other toxic substances in the local air…”
