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A comment on Robotic 'trees' can turn CO2 into concrete. Parent comment

Re:Robotic 'trees' can turn CO2 into concrete by ForHackernews on Tuesday September 11, 2018 @08:05AM (#17958925)
The trees will die eventually. The problem is that we've released a lot of CO2 from trees that died millions of years ago.[0]

If you want to get that out of the atmosphere, it's not good enough to grow trees today because in 50-100 years (or whenever a tree dies) you're right back where we are today.

[0] https://www.nationalgeographic.com/science/phenomena/2016/01...

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Re:Robotic 'trees' can turn CO2 into concrete by gascan on Tuesday September 11, 2018 @02:42PM (#17962224)
The tree which dies is replaced by a new tree.

You're right that we've added more carbon than can be stored in living forests. But reversing deforestation can & should be part of the solution.

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