Trees are overhyped when it comes to CO2 capture/recycling. Algae already outproduces trees globally by 2x. It is also much easier to industrialize. For example, algae ponds could be built alongside fossil fuel plants to capture carbon on site.

Oil is predominately captured algae that died, sank to the bottom of the ocean, and was sealed in by salt deposits/other nonpermeable layers. Coal is carbon captured by trees, but it only formed in a relatively narrow period after cellulose evolved but before bacteria/fungus evolved to eat it. Oil will continue to form, but it's unlikely any new coal will form in the future.

https://academic.oup.com/bioscience/article/60/9/722/238034