Fossil fuels are more reliable than renewable energy because they do not depend on environmental factors. Renewable energy greatly depends on  changes in the environment. If the wind blows or the sun shines, the solar panel’s or wind turbine’s operation is efficient. But if the conditions or the weather are not ideal, they use only half of their maximum capacity. Also, it is easier to transport fossil fuels while transporting renewable sources of energy such as wind, sun and water is impossible. Fossil fuels can be transported on large trucks or pumped through large pipes below and above the ground. These pipes are easily laid underground and can transport gas or oil with ease. 

However, burning fossil fuels causes serious impacts on the environment . When fossil fuels are burned, they release large amounts of carbon dioxide, a greenhouse gas, into the air. Greenhouse gases trap heat in our atmosphere, causing global warming. The rise in temperature of earth has resulted in the melting of polar ice caps, flooding of low-lying areas and rise in sea levels. Also, since burning fossil fuels causes air pollution, many people are dying of pollution-related health problems such as chronic asthma, low lung functioning and cardiovascular diseases. Moreover, Fossil fuels are needed in huge reserves wherever their plants are set up. This requires them to be transported to the desired location via truck, train, ship or airplane. Often we hear of some leaks in oil tankers or ship getting drowned deep under the sea carrying crude oil, mixing toxic substances with water.