ABSTRACT
Climate change per se is not necessarily harmful, but the problems arising from extreme events are difficult to predict, which may have direct impact on agricultural production. Erratic behaviour of rainfall and uncertainty in temperature will consequently reduce crop productivity. Developing countries in the tropics will be more vulnerable to such changes enforced by climate change. The problems of protecting the environment and balancing the world’s need for energy and food require comprehensively multifarious approach. The scope for horizontal expansion is very little and the only available alternative is vertical expansion by increasing productivity and cropping intensity with the use of modern methods of faming such as protected farming/vertical farming employing plant environment control measures, use of good quality seeds, inputs management and plant protection. Greenhouse technology is the most intensive form of commercial cultivation and could well be called as ‘food factories”.
