MEXICO CITY, Dec. 2 (UPI) -- Paris, Madrid, Athens and Mexico City mayors pledged to ban diesel vehicles in the coming decade to improve air quality, urging other cities to follow suit.
The mayors, during the C40 Mayors Summit in Mexico, said diesel-powered cars and trucks will be off the roads by 2025 and said they will be offering incentives for alternative-power vehicles and promoting walking and bicycling.