this post was submitted on 16 Feb 2025
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The point is to use a low carbon power source to power it.
Yes that’s the point but why take the extra steps. Use the low carbon energy directly and stop using the high carbon sources.
The argument is that there exist some use cases where we do not have a viable low carbon energy source yet (things like heavy farming equipment or aircraft), and one can effectively counteract the emissions of these things until we do develop one. Or alternatively, by the time that we eliminate all the high carbon energy, the heating effect already present may be well beyond what we desire the climate to be like, and returning it to a prior state would require not just not emitting carbon, but removing some of what is already there.
Not limited to energy sources either: steel production requires carbon as part of the alloy.
In the production of cement, calciumcarbonate gets heated and emits co2.
Both of these products can not be made without the emission of co2, even when using 100% solar and wind energy