Diesel Emissions

Lax enforcement of standards created to limit exhaust from idling diesel-powered vehicles and buses shows that there is still work to be done in Mayor Richard Daley's quest to position Chicago atop the list of the nation's greenest cities.

At 3 AM, Feb. 19, the state Senate secured its third Republican vote necessary to pass a budget and fill the $42 billion budget deficit. This article looks at one of many environmental rollbacks demanded by Republicans.

In back-to-back rulings, the Californian Air Resources Board approved the nation's strongest climate protection plan and the strictest on-road diesel emissions plans that will mean the oldest, most polluting trucks and buses will soon be no more.