[CARFREE_CITIES] Pollution levels in Bolivia plummet on nationwide car-free day

[Richard Risemberg [e-mail] [CARFREE_CITIES]]

https://www.theguardian.com/cities/2017/sep/03/bolivia-car-free-day-pollution?CMP=share_btn_link


--
Richard Risemberg
***@earthlink.net
323-428-4669
crowtreebooks.com