This literature review seeks to identify current trends, efforts, and gaps in researching urban agriculture impacts in the United States. Using both peer-reviewed research and agency reports, it considers geography, rhetoric, and research methods in order to compile a snapshot of the state of urban agriculture. Although most of the literature is concentrated in the U.S., articles
from Canada, the UK, Cuba, and UN reports were included in order to provide international perspective. The review begins with a discussion on the methodology for finding and choosing this literature, followed by a summary of the scope of the literature. The main body of the review addresses various impacts that were identified in the literature and concludes with a review of
challenges and barriers, existing gaps, and further research needs.