text: ". This city had so much pollution that they had to ban the use of cars, "Paris had 147 micrograms of particulate matter (PM) per cubic meter compared with 114 in Brussels and 79.7 in London,".  This pollution is not only in France, but across the globe, it is only a matter of time before it destroys the ecosystems on Earth, and cars are one of the biggest contributers to this destruction, coming in second only to power plants.