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Comment by Yizahi

First - I'm well aware about CO2 capture being a fantasy and not viable today. The "tiny" problem is that it is still one of the 3 possible faint solutions to overheating and we WILL need at least one of them operational in the next 50-200 years. If we won't start the RnD today, then it would still be a fantasy in a century or two, when we won't have any time left to play around.

Second - where exactly did you get a notion that CO2 capture = "let's just continue destroying the world"? Of course every other tech should be mobilized and improved too in parallel.

Third - nuclear generation at scale is as fantastical as DACs. Please read about actual issues with real life construction of plants and about actual emissions attributed to each plant cumulatively, without greenwashing like selectively ignoring whole parts of supply chain and maintenance and decommission. I love nuclear energy btw, despite literally suffered through the worst accident in their history (I'm from Kyiv) along with my whole family. We do should construct more of them and SMRs can't come quick enough.

Fourth - there is a collective delusion that moving 100% to renewable energy would cut emissions by 50% or any other similar fantasy number. In reality the whole world energy generation is only 1/4 to 1/3 of all world emissions, and course the so called "net zero" or "carbon neutral" catchphrases are greenwashing, it is impossible. A 100% world renewable generation would only cut part of that part of global emissions. So let's say renewables reduce energy emissions by 50% or maybe even 75%. So then the non-generation emissions would decrease by only 15-20% (for example Xnew = Xold * (1 - 0.25 * 0.75) = 0.8125 * Xold or 18% decrease in other words). This is what is often ignored in a green advertisements.

parent Yizahi 11 days ago

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