When the resources are extracted at more rapid pace than its regeneration, then we say that the carrying capacity of the environment reduces. The environment fails to perform its function of sustaining life and this results in an environmental crisis. These environmental crises are the result of a fall in the carrying and absorptive capacity of the environment. In today's scenario, the rate of consumption of resources is faster than the rate of their production. Consequently, the resources get exhausted quickly. On the other hand, renewable resources get renewed or replenished quickly. These are unlimited and are not affected by human activities, such as solar and wind energy. Hence, energy crises can be overcome by the increased use of cost-effective technology of searching the renewable resources of energy.