Americans are breathing less air pollution than before. http://www.nationaljournal.com/energy/u-s-air-quality-has-improved-here-s-the-time-lapse-to-prove-it-20140627 …
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Americans are breathing less air pollution than before. http://www.nationaljournal.com/energy/u-s-air-quality-has-improved-here-s-the-time-lapse-to-prove-it-20140627 …