News Photos

Caption: This chart shows a completed cycle of the genetics-based computer model. The "optimum" point represents the best possible combination of factors that will achieve reduced emissions of both soot and nitric oxide. Those two pollutants are targeted for major reductions by the U.S. Environmental Protection Agency. The "baseline" represents the best existing technology.
Source: Peter Senecal, UW-Madison Engine Research Center
High-resolution 300 DPI JPEG

Photo use

Photographs are available to media organizations and University of Wisconsin-Madison departments for news, editorial and public relations uses, both print and electronic, that are directly related to UW-Madison. They are NOT available for generic use. For university-related use -- including textbooks, commercial products or advertising -- please contact Bryce Richter, photographer, University Communications, (608) 262-7411 or

Published photos must include a credit ("photographer's name/University of Wisconsin-Madison" or "courtesy of"). The specific credit and other details are also embedded in the digital file, which can be viewed by using Photoshop and selecting "file>file info."

None of these images may be modified, altered or used in any way that changes or misrepresents the photograph's content or overall context.