You can join the GLOBE Team via the web HERE.
To find the US Air Quality Campaign team, click ‘Filter By’, type ‘Air Quality’ in the Team Name box that pops up, and click ‘Apply Filter’. You can also join the GLOBE Team in the GLOBE Observer app. Just click on the Settings icon, then scroll down to the 'GLOBE Teams' section.
If you're not sure how to join a Team in GLOBE, please follow the directions
HERE.