我们结婚了

Twitter联合创始人创立的Bluesky公布了去中心化社交网络路线图_我的网站

可凡倾听

A | (ECNS) -- Hot days worldwide could experience around four additional hours of extreme heat by the end of the 21st century under a high-emissions scenario, according to a study led by Chinese researchers. Published in Nature Climate Change, the study found that traditional daily temperature indicators may overlook shorter periods of extreme heat, while hourly temperature analysis can provide a more detailed picture of heat exposure and associated risks. Researchers from Sun Yat-sen University and other institutions analyzed global hourly temperature data from 1981 to 2023, combining observational records with climate model projections to assess how extreme heat exposure could change in the future. The research team found that the duration of extreme heat increased by 62 hours per decade over the study period. Around 28% of extreme heat events occurred on days that would not have been classified as hot days based on conventional daily temperature indicators. Under a high-emissions scenario known as SSP5-8.5, the researchers projected that between 2070 and 2099, each hot day could experience around four additional hours of extreme heat compared with the 2001-2023 period. Days not classified as hot could also see increased periods of extreme heat. The study also found that low- and middle-income countries account for a disproportionately large share of both current and projected extreme heat exposure. Younger generations in low-income countries are expected to experience the greatest increase in lifetime exposure. Researchers said the findings could help improve heat-warning systems, strengthen assessments of health risks and support climate adaptation efforts. (By Helen Mo, intern Liu Shuangjing) 。多西在 3 年后离开 Twitter 并成立 Bluesky 公司，该团队也逐渐走进公众视野内，已经实现了一些预期目标。

B | Bluesky 于周二倡议为其去中心化社交媒体协议启动一个网站，它称之为 AT 协议（Authenticated Transport Protocol）。它还为 Bluesky 应用程序打开了一个候补名单，该团队将其定为访问 AT 协议网络的理想“浏览器”。候补名单很快就被填满了，需要第三方干预。Bluesky 团队在今天的博文中表示：“自今年 5 月以来，我们一直在 GitHub 上的公共存储库中改进协议，只是我们在博客和 Twitter 上大多保持安静。不过接下来这种情况会发生改变”。AT 协议作为去中心化网络，独立于任何一家公司的意愿运作。Bluesky 认为，这种独立性将允许在协议之上构建的社交网络的用户既能保护他们的私人数据，又能避免经常引发争议以使用户着迷的公司算法。Bluesky 表示：“算法决定了我们所看到的以及我们可以接触到的人。如果我们要信任我们的在线空间，我们必须控制我们的算法”。促进互操作，或跨同一协议的不同平台的相互兼容，也是 Blueky 使命的关键。