The problem is trees are short-term (even the long-lived ones) and only a part of the solution because they are a part of the carbon cycle. We need to remove carbon from the carbon cycle.

Another part of the solution is pyrolysis of industrial plant waste into biochar/charcoal. This stable form of carbon can last thousands of years underground and does not need any fancy technology or equipment.

I feel extremely dumb now. I am gonna take my leave.

And grass, and bushes, and all things green that grow. The phytoplankton in the ocean actually process more CO2 than anything else on the planet. That's one reason why ocean warming is so concerning.