Sonoma Biochar Initiative hosted the 2012 US Biochar Conference
For more on their work visit the SonomaBiocharInitiative.org website.
Working group Geoecology. Soil scientist dealing with all problems of biochar use in soils - physical, chemical, biological as well as regulatory questions and quality criteria. Since 2009 Freie Universität of Berlin - since 2003 Federal Environment Agency of Germany - soil protection and environmental risk assessment of pharmaceuticals.