4 ms·
> The fact is, even if we reach net zero in 2050 - which is unlikely - the amount of GHC in the atmosphere will be quite high and the capacity of the ocean to a
by piva00 2y ago
> The fact is, even if we reach net zero in 2050 - which is unlikely - the amount of GHC in the atmosphere will be quite high and the capacity of the ocean to absorb some which we are relying upon is far from infinite and might be slowing down. We need capture. We won’t fix the issue without. And to do that we need time which geoengineering could give us.
The amount of energy required to recapture the emitted CO2 is mind-boggling though. Reducing it in terms of thermodynamics give a better overlook on how absurd the amount of energy would be required to revert CO2 into some other stable form that can be buried somewhere, as much as I'd love some magical technology enabling that we simply do not have the tech, we do not have the abundance of energy to capture even 1% of the CO2 emitted in a year.
If we went full sci-fi with dependable fusion reactors providing as clean and cheap energy as possible we would still need many, many reactors tasked with just providing energy to capture CO2.
- Yizahi 2y agoThat is precisely the reason to invest a lot in the snake oil and sham direct air/sea capture of CO2. Because to solve such insane infrastructure problem we need centuries. If we start today (I mean start seriously), then by 2300 we may have some working and scalable tech and can finally start (only start!) getting towards so called "net zero". If we will start in 2300, then we'll get it working in 2500. Dates are an example, but the principle will hold with any range. And without CO2 capture from air or sea will will only increase global heating for centuries in the future.