Join National Journal as we explore how striking the right balance between green technologies and existing energy sources could impact America's energy future and the U.S. 

On November 5, the U.S. Capitol Christmas Tree 2011 began to make its way from California to a December 6th, U.S. Capitol Christmas Tree Lighting Ceremony. The tree and all of its ornaments are being transported by the latest in heavy-duty clean diesel t. . . 

A diverse collection of federal, state and local officials joined EPA, environmental, health and industry representatives in October in Washington, DC to highlight a new 2010 generation of clean diesel power in trucks and buses and celebrate the clean air. . . 

Southern African Caterpillar dealer Barloworld Power help keep the ball in play for South Africa's FIFA 2010 tournament 

An Audi TV commercial for its clean diesel cars shows barrels of oil returning to a container ship. 

Learn more about how your company can join the Diesel Technology Forum as it celebrates its 10th year as the leading advocate for clean diesel technology. 

This is a sample of B11 biodiesel blend purchase from a retail site in Illinois. The sample was placed in a refrigerator overnight at 35°F (well above the cloud point of the fuel). Precipitates on bottom of container can be seen once the container is ligh. . . 

Clean Diesel, Clean Air: The First-Year Successes of the Diesel Emissions Reduction Program 

Amidst over 20 exhibits, vehicles and engine displays, Washington, DC was transformed into the Clean Diesel Power Capitol. 

Policymakers and industry leaders gathered for the Clean Diesel Technology forum to highlight the broad importance of clean diesel technology that is powering key sectors of the economy. The event highlighted clean diesel powers importance and readiness t. . . 

Clean Diesel Technology Showcase Highlights Diesel Power`s Current, Future Importance 

A new generation of improved clean diesel engines and trucks are on the road -- more environmentally sound and as vital to our economy as ever. 

Tom Fulks and Michael Coates of the Diesel Technology Forum talk about how diesel vehicles can help reduce the carbon footprint of transportation. 

A brief overview of the one-year anniversary of ultra-low sulfur diesel's arrival in the U.S. Commentary provided by Allen Schaeffer, Executive Director, Diesel Technology Forum 

A segment from the show Miles Around featuring the Diesel Technology Forum. 

Provides sound bites and quotes from diesel industry stakeholders 

2007 emission-compliant trucks are some of the cleanest and most sophisticated engines on the road. This footage shows these clean air haulers in action around the nation's capitol 

This footage shows the President seeing the results of clean diesel for himself as DTF executive director Allen Schaeffer conducts a white-handkerchief test with a 2007 Clean Diesel truck. 

This footage shows some of the light-duty vehicles taking advantage of diesel's fuel efficiency and clean emissions. 

These graphics and animations show some of elements at work in clean diesel technology, from engines to exhaust systems. 

This video shows the highlights of a week-long Forum event campaign in Washington, DC geared toward educating policymakers about clean diesel technology. 

A profile of some of the policymakers and recognizable individuals discussing the benefits of clean diesel technology. 

The diesel industry has invested an unprecedented amount of time and energy leading up to the clean air milestone of 2007. Watch this video to find out about diesel technology's role in the future of energy. 

Watch this program highlighting the progress and potential of clean diesel technology, including commentary from public officials, industry and media. 

Public television spot on clean diesel technology.