This next year's competition theme has already been announced and it too is closely tied with Tunza's mission statement and goals. For food security, if not managed properly, leads to degradation in the natural environment through improper waste control, or over extraction of the natural resources that are already going down at an enormous rate. Food security can be tiered to four pillars, which are the following: 

Availability

Access

Utilization

Stability

If not managed properly, not only are socioeconomic factors at extreme risk but environmental ones as well, for sustainability encompasses all of these (see sustainability compass for reference). 

To quote the Food and Agricultural Organization of the United Nations, ?Food security exists when all people, at all times, have physical, social, and economic access to sufficient, safe, and nutritious food that meets their dietary needs and food preferences for an active and healthy life.?

More details about the competition can be obtained from their website here: http://www.projectparadigm.org/challenge#food

The Paradigm Challenge is extremely beneficial in the way that it gives a step by step process in how to come up with a solution as well as provides resources for your general research. You can also view past contents' themes and winners for inspiration.