[elevaet]

Ahem.. Not OP, but Canadian ex-treeplanter here, and I've planted 1.2M trees. I have many friends who've planted more, a couple probably up into the 10M+ range.

It seems insane that we aren't looking at trees more seriously. Here we have a self-reproducing, exponential, solar powered, organic, low-tech, carbon capture system. We don't even have to plant them, we can simply allocate land and let them do their thing on their own if we're patient for natural succession. Or we can accelerate the process by planting select species, thinning etc.

We should also be setting aside more of the remaining old-growth forests to protect them from being logged, as these forests represent a standing carbon sink (aside all of the other ecological benefits of protecting old-growth forest).

I know it's not the complete solution and that we need all the cards on the table, but I fear that in our appetite for high tech fixes, we're overlooking this simple biological solution.

[jvm_]

Trees follow a slow-fast-slow pattern for capturing carbon. Small new trees don't capture much. Middle-aged trees capture a lot as they grow. Old-growth trees don't capture as much as they reach the end of their life-cycle.

As others have said, trees are only temporary as they eventually die and need to be replanted. They're also slow to start, and need to be maintained (which costs carbon as well).