科学与数学advances.sciencemag.org编辑精选
对人类耐受而言过于严酷的湿热天气正在出现（2020）
The emergence of heat and humidity too severe for human tolerance (2020)
2020 — 2021，它一次次回到首页
黑点是上首页（≥ 50 分）的那次投稿，空心点是没冲上去的投稿，点越大分数越高。
导读
这篇发表于 Science Advances 的研究指出，全球某些地区已出现湿球温度接近 35°C（人体生存极限）的高温高湿天气，且此类极端事件比预期更早、更频繁地发生。文章讨论了这种超出人体耐受限度的湿热环境对人类健康和宜居性的威胁。
为什么经久不衰：湿球温度 35°C 这一生存极限概念直观而震撼，随着全球变暖持续，它仍是理解气候变化对人类生存直接威胁的关键科学参照。
HN 评论精选
以小说情节警示湿球 35°C 热浪叠加停电可能造成的大规模死亡
金·斯坦利·罗宾逊的新书《未来事务部》开篇就描绘了一个令人不安的场景：一场湿球温度达 35°C 的热浪。在这种温度下，连年轻健康的人也无法存活。如果再叠加停电（书中正是如此），处于热浪中的所有人几乎都会死亡。这种情况在未来越来越可能出现，可能导致大规模死亡，尤其是在缺乏稳定供电降温基础设施的贫穷热带国家。
boplicity查看英文原文
Kim Stanley Robinson's recent book The Ministry For the Future starts with a very disturbing scenario: A heatwave with a "web bulb" temperature of 35 Celsius. It turns out, in those temperatures, even young and healthy people can't survive. Combined with power outages, as happens in the book, everyone living under such a heat wave will likely die. It's looking increasingly likely that such heatwaves are possible in the future, and possibly quite deadly. This could result in the mass deaths of many people, especially in poor tropical countries that don't have a stable infrastructure to cool most people during such a heatwave. I hope a mass death event from a "web bulb" 35C heatwave never happens, but I'm losing hope, especially with the increasing global temperatures, and the very lackluster progress being made on carbon output.
亲身经历印证：相同气温下湿度不同，体感和可活动性天差地别
印度有两座相距不远的城市能清楚说明这种差异：金奈在沿海，班加罗尔在内陆高海拔地区，纬度几乎相同。即使干球温度相同，体感差异也大得惊人。在班加罗尔，我总能找到阴凉处立刻凉快下来；而在金奈，我全身湿透、衣服被汗浸透，还总觉得快要晕倒。在班加罗尔时我白天还能长距离散步，在金奈我连出门走到车上的路程都只想赶紧开空调。
sudhirj查看英文原文
There are two cities in India that are pretty close by where this difference is very clear. Chennai is on the coast, while Bangalore is inland at a higher altitude while they’re both pretty much the same latitude. The difference in perception even if the dry bulb temperature is the same is insane. In Bangalore I can always find shade and it’ll be cool instantly, but in Chennai my whole body is always soaking wet, my clothes are drenched with my own sweat and I still feel like always about to faint. I used to take long walks during the day when I lived in Bangalore (it has other man made problems like traffic which are still irritating) but here I Chennai I can’t walk or jog outside even if I wanted to. I step outside only to run to the car and turn the AC on.
澄清湿球与干球温度的概念区别
我想这里有人可能混淆了湿球温度和干球温度。湿球温度关系到你的空调或出汗能否有效降温；干球温度则是我们平时量体温、听气象播报时说的温度。
tomrod查看英文原文
I wonder if people confuse wet bulb and dry bulb here. Wet bulb is related to how well your air conditioner or sweating will cool you. Dry bulb is what we usually say when taking a temperature reading, or listening to the local news' meteorologist.
多哈经历让人意识到某些地区再升温几度将不再宜居
在多哈的一次长时间转机让我对气候变化有了不同的紧迫感。即使在夜里，待在户外也令人难以忍受，他们甚至给露天市场装了空调。这让我想到，很多这样的地方可能已处于临界点，再升温几度就会变得完全不宜居。将来也许会出现像北极地区那样的'炎热禁区'，没有特殊装备就无法进入。
skohan查看英文原文
I have to say when I took an extended layover in Doah it gave me a different sense of urgency about climate change. It was just oppressive to be outside, even during the night and they air-condition their open air markets. It got me thinking that there are a lot of places like this which are probably on the edge, and where a few degrees of warming will make them simply uninhabitable to humans. It would be a strange thing to have "hot zones" like we have arctic regions where it's not possible to go without special equipment.
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