Can diamonds be used to make CO2 gas?

yes???

Explanation:

I think so because diamonds are made out of carbon

Diamonds conjured from greenhouse gas. Conjuring gemstones from thin air sounds like one of the alchemist's more ambitious projects. But that is what a team of chemists from China is claiming to have achieved by making small diamonds from carbon dioxide.

Explanation:

the treaty of brest-litovsk was a peace treaty signed on 3 march 1918 between the new bolshevik government of russia and the central powers (german empire, austria-hungary, bulgaria, and the ottoman empire), that ended russia's participation in world war i.