Trees very quickly stop being effective though. As soon as they die, they return all that captured CO2 back into the atmosphere
You’d also joined to plant billions of trees just to keep up with current CO2 emissions, let alone all part emissions
Basically, to convert all CO2 from the atmosphere into oxygen you’ll need to spend the same amount of energy as you got out of it by burning fossil fuels. With losses included, you can triple that. Add to that the energy required to gather the CO2 and the e energy required to safely store it and you can easily quadruple it
So basically take all the energy we’ve generated since the industrial revolution, quadruple that, and that will be the amount of energy we’ll need to spend to remove the CO2 from our atmosphere. If for the next, say, 200 years we stop emitting CO2 and double our output, we spend 50% of the world’s power on CO2 scrubbing, we’d end up with a clean atmosphere. That is being generous
Planting a few trees won’t do anything at all
Planting entire forests the size of larger countries would do little
We opened Pandora’s box and it’ll cost us centuries to close it
Zexks@lemmy.world 7 months ago
I remember when people said the same of electric cars and grid scale solar and wind.
absentbird@lemmy.world 7 months ago
But planting trees doesn’t provide transportation or electricity, it does pull CO2 directly from the atmosphere though. In this case you can compare the capture technology to trees planted on the same area of land and see which one is better land use for the same purpose.
Zexks@lemmy.world 7 months ago
Youre not getting it. The people suppprting trees only dont comprehend that the tech will get better. Its not stuck as is. This is/was the issue complained about for those other technologies 30-50 years ago. This WILL get better and it will do it faster than trees can evolve. As well as everyone one of the supporting systems for it. Its luddite logic.
absentbird@lemmy.world 7 months ago
I’m not sure I agree. There’s efficiency gains to be had in the tech, but I think it’s better not to count your chickens before they hatch. In arid climates where trees struggle to grow it makes sense to deploy carbon capture tech, but I think there’s a also a profit motive that muddies the best practices. Nobody gets rich by replanting forests and leaving them alone, but there’s a lot of money to be made in these power hungry facilities.
At the core trees are just a more advanced technology in many ways. They have biological processes that don’t only remove the carbon but build it into useful timber; plus they’re entirely solar powered by default.
There’s also the potential to combine high tech solutions with our existing flora, either through genetic modification or specialized sensor based agriculture. Something isn’t low tech or backwards just because it involves plants, they’ve been scrubbing carbon for millions of years and are valuable tools.