Buy a Nest thermostat, get a free Google Home Mini at Walmart

June 5 is World Environment Day. We would have said “Happy World Environment Day,” but record high levels of CO2 and yesterday’s heart-stopping headlines about earth’s 2050 demise don’t make “happy” feel like the right term.

If we work fast, a collective lifestyle change from all of us can make a difference. Buying a reusable water bottle, getting a credit card from a company that gives back, and reducing your home’s energy usage are great ways to start. Do the third one today: When you buy a Nest smart thermostat at Walmart, you’ll get a free Google Home Mini (a value of $49).

The hot weather is just starting to pick up, but power plants and pollution go into overdrive with people blasting  AC all summer. Instead of leaving your AC unit on all day, your Nest thermostat will remember turn the cold on an hour before you get home and turn it off when you’re away. Temperature sensors let you control the vibe in different rooms, and can even monitor the weather and adjust the temperature accordingly.

Nest saves users an average of 15% on cooling bills each month, and you could get up to $150 back in rebates depending on your electric company. If Nest’s claim is right, it’ll pay for itself in two years.

The Google Home Mini can make life easier, too. Just say “Ok Google,” to control smart home tech, ask about the weather, play sleep sounds, or set reminders. That’s two home glow-ups in one.

Regularly $49, you can get the Google Home Mini for free when you get the Nest Learning Thermostat for $249.