There are ways to remove the CO2 already in the atmosphere: like planting trees. [1] Also, Microsoft just announced that by 2050 they will remove from the environment all the carbon the company has emitted either directly or by electrical consumption since it was founded in 1975. [2]

[1] https://www.nationalgeographic.com/environment/2019/07/how-t...

[2] https://blogs.microsoft.com/blog/2020/01/16/microsoft-will-b...