With the Earth's climate in dire straits, people have been trying to find alternatives to dairy products like butter. One innovative solution is butter made from carbon dioxide.

California start-up Savor, backed by Microsoft founder Bill Gates, is making waves with its "butter" made from carbon dioxide that appears to be a genuine solution.

Savor used a special thermochemical process that allowed the company to build fat molecules from scratch using carbon dioxide, hydrogen, and oxygen.

This butter has a carbon footprint of less than 0.8 grams of CO2 equivalent per calorie. That's less than half the impact of traditional butter, which is 2.4 grams.

When compared to plant-based alternatives, the difference is even more striking. Savor uses just one-thousandth of the water needed to grow oil crops and takes up no land.

Savor isn't stopping at just butter. It plans to make CO2 milk, ice cream, cheese, and plant-free cooking oils, giving us hope for our planet.