Also, planting trees sequesters co2 into the biosphere. That is not good enough, we need to be sequestering co2 into the geosphere if we want to remove it from the equation
As much as CO2 emissions befear me, so too does increasingly poor topsoil, globally.
- ed
I'm not even sure we'd need to wait for trees to mature either - we just need work with whatever plant absorbs the most CO2. Perhaps algae, even?
In theory it's energy positive: burning the crop can produce energy.
We (humans) have accelerated emissions (by burning, thus reversing, geosphere capture via oil) and destroyed the biosphere through deforestation. This has also been accelerated as raising temperatures thaw permafrost & destroy ocean life (among others).
Anything we can do to reverse this is beneficial.
Heat could also increase biomass since there would be a longer growing season and higher latitudes opening up.
But like you say, it’s a trade off so hard to predict.