U.S. Air Force Earth Week Poster #3. This poster was created by Virginia Reyes of the Air Force News Agency with U.S. Air Force photo by Tech. Sgt. Tracy L. DeMarco. The poster is 9x12 inches @ 300 ppi. Air Force Link does not provide printed posters but a PDF file of this poster is available for local printing. Requests can be made to afgraphics@dma.mil. Please specify the title and number.