Burying trees
A scientist called Ning Zeng is proposing to bury trees (in Danish, scientific article in English here) to remove carbon from the atmosphere.
In many ways it’s a fairly obvious idea, given that coal and oil are the result on plants having been buried millions of years ago, so basically burying plant material now is just creating fossil fuel for the far future.
There’s something slightly weird about digging up ancient plants in the form of oil, gas and coal and burning them while burying modern plants to compensate, though.
Why not just stop using fossil fuels instead? Just because it’s more convenient to burn oil than a fir tree?