If one day soon you see one of those ubiquous 'rolling chimneys' - buses, trucks or cars which belch out greasy smoke every time they move - sporting a sticker proudly announcing that it is a 'chimenea,' it's probably not because the driver is proud that he's poisoning us.
More likely, the vehicle is a victim of this blog's hacking campaign, which turns highly polluting vehicles into involuntary rolling billboards denouncing pollution.
|A typical Bogotá Sitp bus on Carrera 10 this afternoon.|
|An improved bus.|
|Did you notice it?|
|'I am a chimney'|
|Another rolling chimney on Carrera 10 today.|
|Now, helpfully labeled.|