Controlling CO2 : Regulating the Carbon Away (part 1 of 2)

摘要

Greenhouse gas concentrations in the atmosphere, particu- larly carbon dioxide (CO2), are the highest they’ve been in 15 million years, Stephen Mulkey, president of Unity Col- lege, told attendees of the 2012 National Biodiesel Confer- ence and Expo’s Sustainability Forum in February.