的机制之间的相关性大气碳dioxid和全球变暖/冷却?- 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 - 04 - 15 - t20:12:08z //www.hoelymoley.com/feeds/question/16870 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/16870 0 的机制之间的相关性大气碳dioxid和全球变暖/冷却? 列城 //www.hoelymoley.com/users/16809 2019 - 05 - 04 - t16:21:51z 2019 - 05 - 05 - t01:47:38z < p >最后的冰河时期似乎越来越释放的二氧化碳随着全球变暖的增加和在全球变暖时期降低大气中二氧化碳的含量似乎减少相关温度。除了明显,二氧化碳更溶于冷水,也许一些二氧化碳是困在冰川冰,这是已知的< em > < / em >机制?< / p > < p > < a href = " https://i.stack.imgur.com/fswUE.png " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/fswUE.png " alt = "在这里输入图像描述" > < / > < / p > //www.hoelymoley.com/questions/16870/-/16871 # 16871 3 回答的机制是由大卫Hammen大气碳dioxid和全球变暖之间的关系/冷却? 大卫Hammen //www.hoelymoley.com/users/239 2019 - 05 - 04 - t16:40:39z 2019 - 05 - 04 - t19:08:26z < blockquote > < p >除了更明显,二氧化碳溶于冷水,也许一些二氧化碳是困在冰川冰,这是已知的机制?< / p > < /引用> < p >那些明显的机制,尤其是第一的主要机制。大气中二氧化碳含量逐渐下降到非常低的水平在冰期正是因为冷水可以溶解的二氧化碳比温水。< / p > < p >当米兰科维奇旋回达到一个阶段,地球开始变暖的冰期,地球的水开始变暖。温暖水域不能持有尽可能多的CO 2 <子> < /订阅>冰期期间举行。2公司<子> < /订阅>出来的解决方案,增加了Milankovitch-driven变暖。这是其中一个关键原因退出冰川作用更突然进入一个。< / p > <人力资源> < p >基于OP的言论,OP似乎怀疑二氧化碳和其他温室气体多原子气体。这三个主成分的干燥的大气,氮(N <子> 2 < /订阅>),氧气(O <子> 2 < /订阅>),和氩,不是温室气体。电子中性单原子气体和双原子气体组成的两个原子相同的偶极矩为零的物质。这些气体有基本零截面低能量光子(例如,热红外)。< / p > < p >另一方面,多原子分子有更多的自由度比齐次双原子分子和单原子气体组成的大气层。 Some such as water vapor have a marked permanent dipole moment. Others such as carbon dioxide nominally have a zero dipole moment, but transients due to thermal vibrations can temporarily given them a non-zero dipole moment. The combination of increased degrees of freedom and a non-zero dipole moment make these polyatomic gases very good at absorbing some parts of the thermal infrared spectrum.

All other things being equal, adding greenhouse gases to the Earth's atmosphere increases the Earth's equilibrium temperature. It's important to note that this greenhouse effect is essential for life. Without it, the Earth would be a frozen icefall, from pole to pole. In fact, during the Cryogenian (850-635 million years ago) the Earth apparently was covered or nearly covered with ice from pole to pole.

The end of a glaciation adds significant portions of the two most important greenhouse gases to the Earth's atmosphere. Water vapor increases because a warmer atmosphere can hold more water vapor than can a cold one. Carbon dioxide increases because a warmer ocean can hold less carbon dioxide than can a cold one.

While the OP asked about the end of a glaciation, the real question being asked was about what is happening now. What happened at the end of glaciations and what is happening now are one and the same thing. Adding greenhouse gases to the Earth's atmosphere increases the Earth's equilibrium temperature. The end of a glaciation added greenhouse gases to the Earth's atmosphere, making the subsequent warming very rapid. Humanity is adding greenhouse gases to the atmosphere, carbon dioxide in particular, resulting in an even more rapid warming than that that occurred at the end of a glaciation.

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