Hope from ashes

It's hard to believe that there is anything positive that could come out of wildfires. They have devastated homes, taken lives, erased memories, leveled cities and destroyed our forests and wildlands. But a University of Delaware professor has found that there is something of value to be learned from what's left behind in the remnants.

The charred debris left in the wake of wildfires, such as those currently burning in Colorado, Canada and Arizona's Grand Canyon National Park, is known as wildfire char. UD's Pei Chiu, professor of civil, construction and environmental engineering, studies wildfire chars and the ways they just might prove useful in reducing methane, a powerful gas that traps heat in the atmosphere. Methane emissions come from many different sources, ranging from livestock manure to landfills and wastewater treatment plants.

This work also informs his research on biochar - man-made chars created from leftover wood chips, rice husks, corn stover and other agricultural biomass - that can be used in soil amendments, stormwater treatment and other applications.