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Upvoted, because I think it's a legitimate question. I don't think you're actually saying let's stop all long-haul flights and cement production. You're saying
by karaterobot 5y ago
Upvoted, because I think it's a legitimate question. I don't think you're actually saying let's stop all long-haul flights and cement production. You're saying that if we actually believed something was an existential risk to civilization, we'd put almost any option on the table for mitigating it, even if only to rule it out. I assume there is a list of sacred things we wouldn't even consider doing without, no matter the cost in human lives. But is jet travel and cheap construction on that list or not? Maybe, maybe not.
- Robotbeat 5y agoConcrete and jet travel are not existential. They're a few percent of the total. 3% for cement and 2% for aviation. Less than 1% for long haul aviation. If that was it the only thing left, we'd have no problem. That's at pre-industrial emissions level. https://ourworldindata.org/uploads/2020/09/Emissions-by-sector-%E2%80%93-pie-charts.png https://ourworldindata.org/uploads/2020/09/Emissions-by-sect... Long haul aviation makes immigration feasible without dangerous long ship trips, which are worse emissions than long haul aviation. So we should keep them around in some form, but we can improve the efficiency and even electrify them.