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A comment on Flight risk: can we take the carbon out of air travel?. Parent comment

Re:Flight risk: can we take the carbon out of air travel? by lozenge on Tuesday September 03, 2019 @05:17AM (#20864864)
"At present there are no proven technologies capable of large-scale air capture of CO2. It has been suggested that, with strong research and development support and industrial scale pilot projects sustained over decades, costs as low as ∼$500/tC may be achievable [226]. Thermodynamic constraints [227] suggest that this cost estimate may be low. An assessment by the American Physical Society [228] argues that the lowest currently achievable cost, using existing approaches, is much greater ($600/tCO2 or $2200/tC)."

So that's $600+ for an NY-SF round trip - in decades time. Currently we would have no flights at all.

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Re:Flight risk: can we take the carbon out of air travel? by cmutel on Tuesday September 03, 2019 @06:18AM (#20865159)
As far as I understand, current state-of-the-art is between $100-200 per ton CO2 (see https://www.cell.com/joule/fulltext/S2542-4351(18)30225-3). This is from the CO2 capture company Bill Gates has invested in, FWIW.
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Re:Flight risk: can we take the carbon out of air travel? by lozenge on Tuesday September 03, 2019 @06:50AM (#20865290)
Yes, multiply that by about three to get the cost per ton of carbon then add the cost of sequestration - your paper only includes the initial capture.
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Re:Flight risk: can we take the carbon out of air travel? by lmilcin on Tuesday September 03, 2019 @05:43AM (#20864997)
Well, this would definitely be phased in slowly. While phasing in, the technological side would be getting better and better as companies providing scrubbing would be building capability and competing to do it cheaply.

Also take in mind the problem might be solved in a different way, for example people switching to high speed trains for shorter rides, business meetings conducted remotely or people choosing more local travel destinations or alternative ways to spend free time.

The important part is to factor in all costs of products and services into their price, keeping environment clean included.

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