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Lab-grown palm oil could offer environmentally-friendly alternative_我的网站

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　    一键部署OpenClaw        做站长最怕的不是没流量，是服务器莫名其妙瘫了。    New York City — What scientists are brewing inside a New York City lab could dramatically change the products people use every day.Shara Ticku, co-founder of C16 Biosciences, took CBS News inside the lab where the company grows an alternative to palm oil. Ticku said yeast plays a key role in their development process.   "Palm oil is responsible for making hand soaps, foam and cleanse," Ticku explained. "It makes the color stay on your lipstick and on your lips. And it helps create a smooth spreadable emulsion in peanut butter." 

     Palm oil is the most popular vegetable oil in the world, and more than 1.7 million tons were consumed in the U.S. in 2022, according to numbers from Statista.   But it can be as destructive as it is versatile. The World Wildlife Foundation says large-scale palm oil harvesting destroys rainforests and pollutes communities. It is found in more than half of packaged products on supermarket shelves, the conservation organization said.                  The Roundtable on Sustainable Palm Oil, a trade group for the palm oil industry, told CBS News in a statement that "while many exciting alternative palm oil solutions are being developed, curbing the immediate impacts of palm oil production will require solutions that are already scalable."C16 Biosciences would not give CBS News specifics about how much of its palm oil alternative it produces, the company said it  generates "metric tons" every week. It has also partnered with beauty companies and hopes to expand to food."Lab-grown variety may well save the day," climate economist Gernot Wagner told CBS News. "Big question, of course, is this sort of approach the one that will in fact be scalable, and that doesn't have its own negative, broader environmental societal costs?"For Ticku, the proof is in the process.                       "Our process today takes about six days from when we start the process until we extract the oil," Ticku said. "If you plant that today, it takes seven years.""That's the power of biology," she adds.                                  

In:    
• Environment
    

。Slowloris 这类慢连接攻击不发送大量请求，而是故意把连接拖住，耗光 Nginx 的 worker 进程。你的网站可能瞬间从“打不开”变成完全无响应。

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         应对思路很简单：给连接设置合理的超时阈值。客户端发完头部就超时、发body 也超时、整体发送还超时，三个时间窗口一收紧，攻击者就没了拖下去的空间。    http {    client_header_timeout 10s;   #读取请求头超时时间    client_body_timeout  10s;    #读取请求体超时时间    send_timeout         10s;    #发送响应超时时间    keepalive_timeout    30s;    #长连接保持时间         #限制单IP连接数，进一步压制慢连接    limit_conn_zone $binary_remote_addr zone=addr:10m;    server {    limit_conn addr 30;    }    }    这里的时间值不是越小越好。

C | 如果你的接口有上传大文件的功能，client_body_timeout 可以放宽到 60 秒，甚至针对上传路径单独写一个 location。核心原则是：正常用户用不上那么长时间。    配置改完后用nginx -t 检查语法，reload 平滑生效。可以用 slowhttptest 工具自己压测一下，看改成 10 秒后连接还能不能被挂住。

D | 真实业务里我习惯把这几个值默认设为 10 秒，上传接口单独放开。

            

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Published on:21:41:00