Defining impacts of urban farming beyond catchy headlines.

Controversial figures on environmental impacts associated with urban agriculture are receiving attention from the media and the general public. For comparative analysis, however, methodologically sound evidence is needed, before conclusions can be drawn. In this manuscript, we address issues associated with comparative assessment of environmental performances between rural and urban farming, while also evidencing the need for specifically designed indicators that enable for comprehensive assessment of multifunctional urban agriculture. [ABSTRACT FROM AUTHOR]