Ask: Automated Sensor Twitter Feeds

I'm looking for twitter feeds that are the output of automated sensors. For example, @BeijingAir and @ShanghaiAir tweet pollutant and particulate levels in their respective cities. @Earthquake tweets the time and approximate location of earthquakes with a magnitude over 5 on the Richter scale.

Does anyone know of any other such automated feeds?

https://twitter.com/earthquake

https://twitter.com/BeijingAir

https://twitter.com/CGShanghaiAir