编辑-地球科学江南体育网页版堆栈交换江南电子竞技平台

你不是登录。你的编辑将被放置在一个队列,直到同行评议。

我们欢迎编辑,使读者更容易理解和更有价值。因为社区成员审查编辑,请尽量使文章更好比你怎么发现,例如,通过修正语法或添加额外的资源和超链接。

史上有过一个研究蒸汽/热污染对气候的影响(复制)

大多数人都意识到温室效应的概念。二氧化碳收到特别关注,对不确定性的来源,水槽,惰性属性。然而,燃烧,产生二氧化碳,也会产生水蒸气,另一种温室气体。我知道的纸飞机,但推广这一想法之外的尾迹。鉴于水蒸汽是一种温室气体,假设生产数量与产生的大量二氧化碳,有一项研究使用气候模型,只有水蒸气排放清单,只比二氧化碳排放清单吗?

第二个方面是人为蒸汽的热方面。因为蒸汽产生高于环境温度,多少的影响的混合蒸汽对气候,特别是小气候吗?

回答

虽然效果可能是可衡量的(几乎)小。我们增加约每年300亿吨的二氧化碳在空气中。大约一半的被吸收到海洋(误差),剩下的150亿吨仍在大气中很长一段时间。280 PPM二氧化碳尘封,工业革命以前数量约1万亿吨二氧化碳。每年增加150亿吨,以目前的增长速度,需要大约66年280 PPM到560 PPM的两倍。当然,非常近似和海洋吸收速度可能不会保持不变这取决于浓度的变化和海洋温度的变化。然而,水蒸气。而输出不同取决于燃料的质量水添加通过燃烧化石燃料是1/2二氧化碳的质量,所以每年150亿吨。大气中的水蒸气的数量在任何给定的时间是(这个估计)[1]约5.7万亿吨。增加150亿吨每年向大气中水蒸气可能足以显著,但是在评论中指出,大气水蒸气离开很快。 Unlike CO2, which takes a long time to filter out. The half-life of water is days, the half-life of CO2 is probably a century or more. If extensive driving or fossil fuel burning is done in low humidity areas, it seems feasible that some warming could be added by the increase in water vapor, but I expect that effect would be small but perhaps measurable. In high humidity areas it would be irrelevant. I've never heard of a study that looked at this in any detail. That said, the intuitively obvious answer is that the effect would be tiny. A tiny fraction of of the effect of CO2. That said, water vapor does need to be included in the study as warmer temperatures hold more water vapor, so, as the Earth warms, water vapor in the atmosphere increases and pushes the warming along even more. That's a well known feedback mechanism. The effect of water from burning fossil fuels is likely very tiny because it's too little and too temporary and the net total amount of water vapor in the air is still primarily a factor of temperature, weather patterns and wind direction. It is, however, probably not zero. There's likely some tiny effect, but I've never heard of a study that looked into it. [1]: https://en.wikipedia.org/wiki/Atmosphere_of_Earth#Density_and_mass

编辑总结

取消

添加一个评论 |

正确的小错误或错误
澄清的意思,而不更改它
添加相关资源或链接
总是尊重作者的意图
不使用编辑与作者回复

创建代码用引号”或式子~篱笆
' ' '
像这样
' ' '
添加语言标识符来突出显示的代码
”“python
def函数(foo):
打印(foo)
' ' '
把段落之间的回报
在结束linebreak添加2个空间
_italic_或* *的* *
报价将>开始的
做链接(尽量使用https)
< https://example.com >
(例子)(https://example.com)
< a href = " https://example.com " > < / >示例
MathJax方程罪\ \ ^ 2θ美元

格式帮助»
回答帮助»

MathJax帮助»