需要多大的一个事件触发一个漫长的冬天吗?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 07 - 07 - t12:06:06z //www.hoelymoley.com/feeds/question/16955 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/16955 1 需要多大的一个事件触发一个漫长的冬天吗? Muze //www.hoelymoley.com/users/5052 2019 - 05 - 15 - t21:49:27z 2019 - 05 - 19 - t09:17:41z < p >小流星或自然核爆炸融化冰盖在地球上触发一个微型冰河时代没有事件被人们观察到的吗?< / p > < p >地球有一个可以覆盖热循环收集热量,直到触发全球冬天长吗?< / p > //www.hoelymoley.com/questions/16955/-/16978 # 16978 2 trond汉森回答的多么大的一个事件需要触发一个漫长的冬天吗? trond汉森 //www.hoelymoley.com/users/6258 2019 - 05 - 19 - t06:49:04z 2019 - 05 - 19 - t09:17:41z < p >小流星/小行星撞击可能引发核冬天,但它将注册的人,很可能引发一个冰河时代,除非影响大气中创建了一个非常大量的尘埃。大气中的灰尘需要保持十多年来触发一个冰河时代。< / p >

A natural nuclear explosion cannot be very large because as soon as critical mass is reached it will explode so the size of the explosion is in a way self limiting. If this happened under the world's major ice sheets it will melt a relatively large amount of ice but this would be registered by an increase in radioactivity in sea water (possibly many years after the explosion took place). So this would not trigger an ice age.

A large volcanic eruption can cool the earth for a few years but is unlikely to trigger an ice age unless it lasts for several decades, and yest again, this would be registered by people. You can take a look here to see what kind of magnitudes that have happened in our history https://www.ranker.com/list/the-worst-volcanic-eruptions-in-history/drake-bird

When you ask about an overlaying thermal cycle (as in heating until the temperature crashes), this is very unlikely to happen unless the temperature reaches a point where a very large part of life gets eradicated, as the temperature on earth goes up the ocean can hold less and less CO2 until at one point the oceans starts to release more CO2 than it absorbs from the atmosphere. This means the heating will not trigger cooling unless life on our planet is significantly reduced.

Water can hold less dissolved gasses when the temperature goes up, so at one point aerobic life in the ocean can no longer survive due to the lack of dissolved oxygen in the water.

This is just about how serious it might get if we keep on going like we are now.

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