Subsistence Agriculture—An Approach Towards Food Security in Changing Climate

Food systems are affected by climate change in a number of ways, from direct effects on crop production to changes in markets, food prices, and infrastructure. The major objective of agriculturists is to meet food demand and guarantee food security for the growing population of the globe while reducing the production gap of major food grains. Hence, the impact of climate change on farming is one of the ongoing research areas in agriculture. Subsistence farming of climate-resilient crops can be an answer to ensure food security for masses of underprivileged regions of the globe under changing climate scenarios. In most of the food-insecure regions of the world these crops can provide options for adaptation and livelihood when other major food crops face challenges and food supply chains collapse due to future climate change-related inconveniences. In this chapter, the potential of different climate-resilient subsistence crops has been discussed, which strategically can be a part of food security policies in the near future.