John Taylor, a doctoral candidate working with crop sciences researcher Sarah Taylor Lovell [at the University of Illionois], was skeptical about the lists of urban gardens provided to him by local non-governmental organizations (NGOs)....
Using these indicators and Google Earth images, he examined the documented sites. Of the 1,236 "community gardens," only 160, or 13 percent, were actually producing food.
The false positives were planter boxes or landscaping.
Penn State's first geodesign course begins in March. It's LARCH 597A - Geodesign History, Theory, Principles runs eight weeks, online.
- more info coming to geodesign.psu.edu via @Geodesign_PSU
It wants to locate your position when you visit. More imporantly offers navigation and information on accessibility - including slopes! Sweet.