Dr. Iain Walker is a staff scientist at Lawrence Berkeley National Laboratory and an ASHRAE Fellow. He has more than 35 years experience as a building scientist researching energy and indoor air quality in homes in the US and Canada. He is the author of over 200 papers and research reports and developed multiple building industry standards for ASHRAE, ASTM, RESNET, and international standard bodies. His current work focuses on residential ventilation and home decarbonization. He leads the Residential Buildings research team at LBNL: Homes.lbl.gov