/u/Jarl_Ace's posts in /r/askscience

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What would happen to global temperatures if carbon dioxide concentrations in the atmosphere suddenly dropped to roughly pre-industrial levels?

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When will Arabian/Nubian/Somali plate divergence flood the Danakil Depression and give Ethiopia a coastline?

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If the sun of a life-bearing planet were to suddenly undergo a supernova, what would the extinction of life on the planet look like?

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I read that when Krakatoa erupted, it gave off a sound of 300 decibels. But I've also learned that at 194 decibels, there is a complete vaccuum between the soundwaves. How is it possible to go above this without a denser atmosphere?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What would happen to global temperatures if carbon dioxide concentrations in the atmosphere suddenly dropped to roughly pre-industrial levels?	1
When will Arabian/Nubian/Somali plate divergence flood the Danakil Depression and give Ethiopia a coastline?	1
If the sun of a life-bearing planet were to suddenly undergo a supernova, what would the extinction of life on the planet look like?	1
I read that when Krakatoa erupted, it gave off a sound of 300 decibels. But I've also learned that at 194 decibels, there is a complete vaccuum between the soundwaves. How is it possible to go above this without a denser atmosphere?	1