Dr. Daniel Berger, a professor of chemistry at Bluffton University, will discuss climate change and “green” chemistry in a Bluffton colloquium at 4 p.m. Friday, Jan. 30, in Stutzman Lecture Hall in Centennial Hall.

His presentation, titled “Burning 350 Gallons of Gas to Learn More about Global Warming,” is free and open to the public.

Berger will address what is known about the causes of global warming, and some things that might be done in response. He will also touch on green chemistry—design of chemical products and processes that reduce or eliminate generation of hazardous substances—and the rationale behind it.