*Introductory Chapter: Concept of Food Security and Its Overview DOI: http://dx.doi.org/10.5772/intechopen.109435*

historical achievements of global agriculture, which resulted in the "green revolution" and prevented millions of people from dying of starvation, a significant portion of the solution will need to originate from technological advancements. Thus, this advanced technology will aim to ensure safe, sufficient, and nutritious food to fulfill the dietary needs of the worldwide human population. Such technologies are beneficial to produce, distribute, and process food at the market level for easy access of consumers. Therefore, the investment in the development of agriculture and longterm neglected worldwide research should be double for the proper application of development of these technologies.

Any debate of food security is insufficient without addressing the trade and complicated network of sociopolitical and other challenges, which are more precise as compared to processing and production. The effects of plant diseases on food production, quality, and safety were mainly mitigated by climate change. The overview of this chapter emphasizes plant protection professionals share their scientific knowledge to inform policy debates. To boost productivity and quality, research must be communicated beyond the farm gate to policymakers and the public.

There has been limited experimental observation on plant diseases under field conditions that accurately imitate climate change, limiting opportunities to improve crop adaptability or disease management. In addition, through the use of models, a significant amount of information regarding the potential effects of global climate change has been acquired. Initial assessments are available for a select number of nations, regions, crops, and diseases. Thus, food security is a necessary measure to ensure safe, sufficient, and nutritious food for human beings all over the world.

Many climate change worrywarts assume a changing climate would make food security more challenging. If climate changes occur, they could affect food production and revenue. Climate change mitigation or adaptation may slow output growth or redirect funds from poverty or food insecurity relief. Adapting to climate change and making sure there is enough food can both help each other. As places build up their agricultural infrastructure over the next few decades, they may be able to take advantage of their great growing conditions. Second, the fact that climate change affects the whole world encourages everyone to do their part and work together. During talks between rich and poor countries about possible preventative and adaptive actions, food security could be used as an example of a low-cost goal with a high return in terms of building international cooperation and creative skills. Food security for industrialized and developing countries will require proactive policies, programs, and institutions.
