In 2016 my friend Mike was designing a national park exhibit. He asked me to build a simple display for an iPad that would dynamically update with the latest C02 readings from the Mauna Loa observatory.

It still works 10 years later. Why? #BecauseRSS

Simple version https://code.cog.dog/co2

and "fancier" one with background from a USGS web cam https://code.cog.dog/co2/cam.html

Code: https://github.com/cogdog/co2

#smallWeb is the #bestWeb