>> “Climate Solutions" is also available as an e-book.

When I was a kid, my dad used to go around the house switching off lights and shouting that we were wasting electricity—in those days that meant we were throwing away money. My eight-year-old daughter goes around the house switching off lights, shouting that we’re wasting electricity—which today means we’re harming the climate.

Energy efficiency is a crucial part of the fight against climate change. In our climate podcast energy efficiency episode, we’ll show you how to reduce the energy you use to cool or heat your home—and the impact that can have on climate change.