What if you started monitoring the local air quality around your community -- checking local parks, street corners, etc. -- and then found that the very worst results were coming from your own home?
That's basically what happened to the students at Manual Arts High school in Los Angeles, except they discovered that their classroom was the most polluted spot in the neighborhood.
The students were taking part in something called the Black Cloud Citizen Scientist League -- a game developed by local artists and engineers aimed at teaching students about air quality.
The little blue boxes (shown above) are distributed in neighborhoods near the participating schools, they then measure local air quality throughout the day and transmit that info back to a web server. Students, using that information, are then sent out to find the boxes.
Get all the info here.