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Make Sunsets Short Sleeve T-shirt

Make Sunsets Short Sleeve T-shirt

You are offsetting the warming effect of 1 ton of carbon dioxide for 1 year!

Introducing the Make Sunsets T-Shirt: Your Commitment to a Cooler Planet

Proudly wear your dedication to combating climate change with the Make Sunsets T-Shirt. Featuring our logo on the front and a breathtaking satellite image of Earth on the back, this shirt is more than just apparel—it's a statement.


  • Front: The Make Sunsets logo, symbolizing our mission to scale up stratospheric aerosol injections and cool Earth.
  • Back: A detailed satellite image of Earth, reminding us of the planet we're working to protect.

Why Wear It?

By choosing the Make Sunsets T-Shirt, you’re not just showing support for our cause—you’re actively participating in a movement that aims to cool the planet and fight climate change. Each shirt serves as a conversation starter, spreading awareness about our innovative approach to cool Earth.


  • 100% combed ring-spun cotton
  • Heather Grey is 90% cotton, 10% polyester
  • Fabric weight: 4.3 oz/yd² (145.8 g/m²)
  • 32 singles
  • Pre-shrunk
  • Blank product sourced from Honduras, Nicaragua, Mexico, or Cambodia

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

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Why others have joined cooling Earth
  • We should obviously be doing solar geoengineering. We are on track to radically reduce emissions in the coming years but thermal damage will lag our course correction so most of our climate pain is still ahead of us. Why risk destabilizing the West Antarctic ice sheet or melting the arctic permafrost or wet bulbing a hundred million people to death? Solar geoengineering can incrementally and reversibly buy down the risk during this knife-edge transition to a better future. We owe future generations to take all practical steps to dodge avoidable catastrophic and lasting damage to our planet.

    Casey Handmer, PhD from Caltech
  • It’s a small way I can help with a seemly very large problem! For what it’s worth, $200 offset 20 tons of CO2 is a great win!

    Brian Vallelunga, CEO of Doppler
  • At some point, you learn about reflective particles as a potential cooling method. The next question would be: 'Is anyone doing this now?' This led to the discovery of Make Sunsets, a team that not only explores solar radiation management techniques but also works to implement them. It's incredibly reassuring to see a group like Make Sunsets pushing the boundaries of scientific research, aiming to create a cooler, more sustainable future for everyone.

    Kevin S. Thompson, Austin, Texas