This week, we’re featuring an episode from How To Save A Planet, a podcast about climate change hosted by Dr. Ayana Elizabeth Johnson and Alex Blumberg.

Heating and powering buildings takes a lot of energy, which is why a full thirty percent of U.S. greenhouse gasses can be traced back to the indoor environments in which we live and work. Lowering that number on a collective scale - by increasing their efficiency - is no easy feat.

In this episode, Ayana and Alex speak with Donnel Baird, founder of BlocPower, about his mission to tighten up one of the leakiest contributors to climate change: our buildings.

How To Save A Planet is produced and reported by Rachel Waldholz, Kendra Pierre-Louis, Anna Ladd and Felix Poon. Their senior producer is Lauren Silverman. Their editor is Caitlin Kenney. Sound design, mixing and original music by Emma Munger. Additional music by Catherine Anderson and Bobby Lord. This episode was fact-checked by Claudia Geib.

Outside/In theme music by Breakmaster Cylinder.

Sign up for the Outside/In newsletter for our biweekly reading lists and episode extras.

Support Outside/In by making a donation in our year end fund drive

Learn more about your ad choices. Visit megaphone.fm/adchoices