In his presentation at the Vision 2020 Sustainability Summit in Washington, D.C., esteemed building scientist Mark LaLiberte of Construction Instruction explains why we need healthier, safer, more durable, efficient, and affordable sustainable homes, and what, exactly, that means for day-to-day construction.

For more information on the year-long Vision 2020 project, which aims to establish and track a roadmap of critical targets for the building industry to address climate change-related goals by the year 2020, visit