The City Nature Challenge is an effort for cities to find and document as much urban nature as possible by challenging residents to become citizen scientists. Residents are asked to explore their area (backyard, playgrounds, parks, etc.) for plants and bugs/animals, document their findings (take a photo), and report them (via the iNaturalist website or app). The underlying objective of this event is to develop a new baseline for exploring a city’s biodiversity and to monitor the acceleration of change. Click here for more information.