Food Insecurity
The USDA Economic Research Service (ERS) defines food insecurity as a household characteristic. Food insecure households are those for which “consistent access to adequate food is limited by a lack of money and other resources at times during the year” (See more at: USDA-ERS).
Food Security
Food security exists “when all people at all times have access to sufficient, safe, nutritious food to maintain a healthy and active life.” According to the World Health Organization (WHO), the three pillars of food security are: availability, access and (safe) utilization. In addition you can learn about the four dimensions of food insecurity at the FAO website.
Green Manure
A fertilizer consisting of growing plants that are plowed back into the soil.
Heuristic
Enabling a person to discover or learn something for themselves. Techniques, activities or lessons that allow someone to discover something for himself or by finding solutions through experiments or loosely defined rules.
Sustainability
Sustainability is a holistic concept that built on three inter-related pillars: environmental, social and economic. To be sustainable, any entrepreneurial activity must be economically viable, ecologically healthy and socially equitable. A universal definition of sustainability was given for the first time by the World Commission on Environment and Development (WCED) in the Brundtland report published under the auspices of the United Nations in 1987.