For the past two decades, NRDC's Dump Dirty Diesels Campaign has been a leader in local, state, national, and international efforts to solve the problem of dirty diesel exhaust. By creating groundbreaking programs to reduce community exposure to dirty diesel exhaust while demonstrating clean diesel and alternative fuel solutions in New York and California, successfully advocating for the world's most protective diesel fuel and emission standards in Washington, and working with the Partnership for Clean Fuels and Vehicles and local partners to introduce cleaner diesel fuels and vehicles in developing countries around the world, NRDC attorneys, scientists, engineers, and advocates have scored major victories on the path to cleaner air... Dirty diesel exhaust contains a wide mix of pollutants...all of which are emitted from the engines used in most trucks, buses, ships, trains, farm and construction equipment, generators, and even some cars and power plants.