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Global warming is likely avoidable using geoengineering technology. But, for some reason, many don’t think a technological solution is morally appropriate. For
by dr_dshiv 5y ago
Global warming is likely avoidable using geoengineering technology. But, for some reason, many don’t think a technological solution is morally appropriate. For instance, here is a concerted effort trying to permanently ban all scientific research on geoengineering [1].
Sure, no one wants to loft sulfur dioxide into the upper atmosphere, but it won’t cost much [2] and we have plenty of natural experiments demonstrating safety (volcanoes). The critical thing is that it would buy time to transition. It’s not like there isn’t a massive interest in transitioning from fossil fuels. But, will we transition fast enough to prevent irreversible runaway positive feedback loops?
[1] interestingly, the rationale for banning solar geoengineering is not the potential danger of the technology, but the (claimed) inability to govern the process. https://www.solargeoeng.org/ https://www.solargeoeng.org/
Alternatively, here is a view from the Editor of Science, calling for “Symmetric Precaution.”
https://www.science.org/doi/10.1126/science.abm8462 https://www.science.org/doi/10.1126/science.abm8462
[2] https://iopscience.iop.org/article/10.1088/1748-9326/aae98d/meta https://iopscience.iop.org/article/10.1088/1748-9326/aae98d/...
- michaelbarton 5y agoI agree. I think we should be discussing geoengineering. Outside of technical feasibility, I believe there are two arguments against doing geoengineering: - It'll reduce the motivation to transition. You can imagine the current politicians and lobbies against climate change trotting out an argument along the lines of we don't need to transition because we have geoengineering. - The second argument which holds more weight I think is that it creates a time bomb. You need to continue increasing the amount of geoengineering that's happening. I believe the name for this is "termination shock": all the pent up warming happens in a much smaller time scale which could have massive unintended consequences. "The Risk of Termination Shock From Solar Geoengineering" https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017EF000735 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/201...