Climate Changes and Their Impact on Productivity of Some Crops

To all those interested in the future of agriculture in the world. There is no doubt that producing enough food supply must be an important strategy in many countries all over the world. Food in the developing countries consumes about 60% from the national income. The ability of people to produce enough foods for feeding themselves and their animals depends to a great extent on the climatic factors which include temperature, light and water. Therefore, intensive care must be paid to the influence of the climatic change all over the world to assure producing sufficient food for human consumption. Climatic changes could be summarise in the increase in temperature, global warming, the decrease of waters, floods and the change in the amount of rainfall, dryness, the increase in atmosphere humidity, the increase in ozone concentration, the pollution resulting from burning fuel and the excessive in the use of mineral fertilizer.