Popular activities within the Public Lab community include: 

* flying kites with cameras over beaches to track pollution at the shoreline

* flying kites with infrared cameras over wetlands to track loss or restoration over time

* flying balloons over urban waterways to track sewage in the water and discover what vegetation thrives on the edge. 

* attaching a mobile spectrometer to your cell phone to reveal the contents of a distant smoke plume

* what else?