30 Mai 2013
NPR: Breathing Easier: How #Houston #Texas Is Working To Clean Up Its #Air http://t.co/eTJggKx96d #pollution
May 30, 2013
Breathing Easier: How Houston Is Working To Clean Up Its Air : NPR
The Houston area produces about a quarter of the nation's gasoline, and about a third of the plastics that are in our cars, cupboards and just about everywhere else. So it is no surprise that this heavily industrial area has a problem with air pollution. But in the past decade, Houston's air has improved dramatically.