Kale Roberts is a former renewable energy beat editor for MOTHER EARTH NEWS. He is a Program Officer with ICLEI – Local Governments for Sustainability USA, where he supports cities across the U.S. to manage greenhouse gas emissions and develop climate action plans. Previously, he worked as Climate Change Adaptation Support with the United Nations Development Program in the Asia-Pacific region. He was U.S. Peace Corps volunteer in Thailand (2010-2012) and a Rachel Carson Scholar at the Bard Center for Environmental Policy. He is based in New York’s Hudson Valley.

Dan Chiras is director of The Evergreen Institute in east-central Missouri, where he teaches self-sufficiency and sustainability workshops on a wide range of topics. Chiras is also author of 32 books and several hundred articles on subjects including residential energy efficiency and renewable energy, sustainable communities, green building and natural building. His talks are fun, inspirational and full of useful information.