If there are more trees in 10 years than there are now, and we keep that number relatively steady, won't that mean less CO2 in the atmosphere? Individual trees may die and decompose, but they can be replaced.
As you add more trees (and the globe continues to get hotter), the risk of forest fires increases. In theory you are correct that we could just keep increasing tree amount, but in practice that will be difficult in a lot of the world as it gets hotter. Trees (and algae) are great capture tech, but horrible long term storage tech. There are currently interesting proposals on how to long term store wood and other biomass for sequestration but I'm unsure if any company is doing them at scale yet. Off the top of my head there is burying the biomass in mines, and putting biomass in a chemical bath that turns it's CO2 into some form of storable liquid and then storing that. I can only find a link for one of the two after quick googling.
but as it is, the global net change in terms of forrest is negative. Hell, the amazon is losing 10.000 acres a day. And aside from direct human intervention, there's desertification that's not getting any better.
Interesting, didn’t know it. Did you read the page in question?
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As of 2023, the Great Green Wall was reported as "facing the risk of collapse" due to terrorist threats, absence of political leadership, and insufficient funding. “The Sahel countries have not allocated any spending in their budgets for this project. They are only waiting on funding from abroad, whether from the European Union, the African Union, or others.” said Issa Garba, an environmental activist from Niger, who also described the 2030 guideline as an unattainable goal. Amid the existing stagnation, a growing number of voices have called for scrapping the project.
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https://cbmjournal.biomedcentral.com/articles/10.1186/1750-0...