Food security refers to the availability of food and one’s access to it. A household is considered food-secure when its occupants do not live in hunger or fear of starvation. Food availability, food utilization, and food access are the principle variables that define household food security and should guide interventions:

• Food Availability:

Sufficient quantities of appropriate, necessary types of food from domestic production, commercial imports, or donors, are consistently available to individuals, are in reasonable proximity to them, or are within their reach.

• Food Access:

Individuals have adequate incomes or other resources to purchase an appropriate food needed to maintain the consumption of an adequate diet and nutritional level.

• Food Utilization:

Food is properly used, and many suitable techniques are employed for storage. At the global level, Hunger results from political and economic inequality, environmental degradation, unjust trade policies, inappropriate technology, and other factors depending on local context.

Natural resources are the basis of human life. We use these varied natural resources in different ways to satisfy our needs and wants – eating and drinking, growing food, making clothes, building houses and transport, for example. However, natural resources are not infinitely available for human use. Not only non-renewable but also renewable resources are limited. So, communities should be economical with their natural resources in a sustainable manner.

In many regions of the world, this general shortage problem is aggravated by the degradation and destruction of natural resources (e.g., soil erosion). This is mainly due to overuse or a non-adapted use of these resources. The resistance and regenerative power of many landscape systems are thereby exceeded. Water balance problems threaten the living conditions of communities and limit the use of resources (e.g., destructive flooding, droughts). These problems are indicators of non-sustainable management of natural resources