China’s “zero-Covid” policy relies heavily on mobile phone apps that display a health code in one of three “traffic light” colors: red, yellow, or green. Users install the apps via WeChat or Alipay, ...

Smoke from Canadian wildfires has impacted the air quality throughout United States, including in the northern High Plains, Midwest, Great Lakes, southern Mid-Atlantic and into the Northeast. This has ...

It occurred to me that when someone reads my articles or those of another contributor, we often times use terminology that may not be understood fully and thus the thrust of the point gets lost.