Biomass—organic material from plants and trees—is considered a source of renewable energy. However, environmentalists are asking Governor Charlie Baker to stop funding biomass wood heat in his renewable energy law, stating that it actually hurts the environment. Carolee McGrath sat down with Bill Moomaw, Professor Emeritus of International Environmental Policy at Tufts University, and environmental justice advocate Michaelann Bewsee to learn more about the debate around biomass renewable energy.