In The Weather Machine: A Journey Inside the Forecast, author Andrew Blum gives a high-level overview of global weather forecasting. What complexity hides behind the simple interfaces of our daily weather apps? Three main points stuck out to me: “The weather machine has to be a global system, and it won’t work any other way.” International collaboration is critical. Weather models need lots of global data to be effective. Weather technology, like the internet, is closely tied to militar...