We have burnt through hundreds of millions of years of fossil fuels (aka trees) in the past couple centuries. How can we regrow that “forest” one time and make a dent in carbon emissions?

Edit: I’d be happy to proven wrong, I just can’t imagine how if we increased the today’s biomass by an incredible percent, it would come close to the amount of carbon stored over millions of years.

Edit 2: 1.2 trillion trees would cancel out 10 years of human CO2 emissions. The planet currently has 3 trillion trees https://e360.yale.edu/digest/planting-1-2-trillion-trees-cou...