After retiring from a career in energy and natural resources, Peter founded New England Biochar with Bob Wells in 2009, and has been manufacturing, consulting, training and presenting on biochar use and production ever since. He was introductory speaker at the Northeast Biochar Symposium in 2009, a presenter at the 2010 USBI conference, and has had past or current consulting and installation projects in Chile, Hawaii, Canada, and in several states in the continental US. In addition, Peter is a principal contributing author of "The Biochar Revolution."