Migration to Cities Drains Resouses

Migration from rural areas to the mega-cities in search of food, job and security is a natural process. But every city has its limitation; it has its own saturation point and if exceeded, a city might falter while providing basic facilities to its residents. As modern mega-cities are now choking with the pressure of ever growing population, scientists fear that in near future these cities might have to face an acute food and water crisis.