I'm doctor Anthony Liz, and this is climate connections. In Chicago, many streets are lined with small brick homes with big windows and wide, low pitched roofs. They're known as Chicago bungalows. They are about a third of our single-family housing stock here. There's over 80,000 of them, we think. And they have historically always been for everybody, all different income levels, all different kinds of occupations, all the different kinds of people. Carla Bruni at the Chicago bungalow association says most of these homes are about a century old, and like many old houses, they can be drafty and expensive to heat. So her group partners on a weatherization program for bungalows and other vintage homes. Homeowners making less than 80% of the area's median income qualify for free energy saving upgrades, like air ceiling and new insulation. They generally see around a 30% reduction on their electric bill and around a 50% reduction on their gas bill. Bruni says that over the years, her group has worked on about 13,000 homes. There's a real ripple effect there in terms of not just lowering bills, but really watching energy consumption drop in certain neighborhoods. So making small improvements to older homes can make a big difference for residents and the climate. Climate connections is produced by the Yale center for environmental communication. To hear more stories like this, visit climate connections dot org.