Daniel D. Chiras is the author of The Natural House (Chelsea Green, 2000). He holds a Ph.D. in physiology and teaches courses on sustainability and environmental health at the universities of Colorado and Denver. He is the author of five college and high school text books as well as other books on global environmental issues. Chiras is also an avid musician, organic gardener, river runner, and bicyclist. He lives with his family in a passive solar/solar electric, straw bale, and rammed tire house in Evergreen, Colorado. For more information please visit www.danchiras.com.Chiras, Daniel D. is the author of 'Solar House Passive Heating and Cooling', published 2002 under ISBN 9781931498128 and ISBN 1931498121.