**6. Conclusion**

From the above discussion of the chapter, it may be concluded that climate change will adversely affect the sustainable crop production in future that ultimately lead to decrease the food production of increasing population. Different international organizations already projected that water availability in arid and semi-arid regions across the world will decrease, due to lack of rainfall and increase the temperature which leads to increase in the dry areas. Since climate change will impact on soil water balance that leads to change in evaporation and plant transpiration. While, with the increasing temperature, lack of precipitation and soils water unavailability, crop production will likely to decrease through shortening the crop growth cycle. Therefore, it is important to understand evaporation, transpiration as well as evapotranspiration to mitigate their adverse effect under future changing climate. Researchers already revealed that soils with high water holding capacity and crop cultivars which are tolerant to adverse effect as well as the application of improved management strategies will be better to face the impact of drought. Where, if we could increase the irrigated areas, the total crop production could be increased to the food security of increasing population.
