This literally looks like the start of a sci-fi movie.
These trees might become Grey Goo, if they can outgrow other trees, they can eventually infect the other ones as well. We might end up completely ruining our environment and there's no way to stop it.
I don't understand how anyone can think this is a good idea, it's one thing if you want to grow a small genetically engineered plant for your own personal use, but if you're talking about spreading this stuff throughout the world, we have no idea what the environmental impact would be.
This is like saying hey, if we stopped building new cars, and reduced driving by 30% over the next 30 years, we'd reduce global warming.
But then some guy on the board at Ford says nah, let's just plant some super trees in the ground to suck up all the pollution we're going to put out.
We have more than enough, in this world for everyone to live a decent life. It's just capitalism demands e keep consuming more and more and more regardless of the consequences.
https://en.wikipedia.org/wiki/Unintended_consequences