Mayors of 4 capital cities to ban all diesel vehicles by 2025

Eiffel Tower in Paris, France (photo by Rijin, via Wikimedia Commons)Even before the Volkswagen diesel scandal, diesel passenger cars were never popular in the U.S. But in other parts of the world—especially Europe—diesels have been the de facto choice of many buyers for decades. Increasing concern over air pollution and the VW scandal are beginning to change that, though. DON'T MISS: Paris weekday ban...