https://www.newsweek.com/viral-post-liquid-tree-algae-carbon-dioxide-1792214

This story about the Algae trees for urban areas has gone viral a couple of times.

One of these things replaces 2 10 yr old trees. Meaning the algae which doesn't take 10 years to grow can start replacing Carbon at a faster rate than planting trees would.

Building some of these things and filling them with algae is faster than growing trees. Not better, than trees, but faster. So do some of both. Build ten of these and plant 20 trees. As the trees grow, move these liquid trees and plant trees in it's place. Keep the liquid trees doing what they do. Take CO2 out of the atomsphere.