Justify that the use of hydroelectricity should be increased.

The use of hydroelectricity should be increased than that of fossil fuel energy because : 

• Hydroelectricity is renewable whereas fossil fuel is non renewable source of energy. 
• Hydroelectricity is pollution free but fossil fuel energy produces large smoke. 

Hydropower is a clean, domestic, and renewable source of energy. ... Unlike fossil fuels, hydropower does not destroy water during the production of electricity. Hydropower is the only renewable source of energy that can replace fossil fuels' electricity production while satisfying growing energy needs.The energy generated through hydropower relies on the water cycle, which is driven by the sun, making it a renewable power source, making it a more reliable and affordable source than fossil fuels that are rapidly being depleted. ... Some hydropower facilities can quickly go from zero power to maximum output.While obviously not as polluting as coal plants, hydropower reservoirs do generate the greenhouse gas methane, produced by rotting organic material in the dammed water. This could account for at least 4% of global greenhouse gas emissions, according to International Rivers.

Fossil fuels are made from decomposing plants and animals. These fuels are found in the Earth's crust and contain carbon and hydrogen, which can be burned for energy. Coal, oil, and natural gas are examples of fossil fuels.Fossil fuels produce large quantities of carbon dioxide when burned. Carbon emissions trap heat in the atmosphere and lead to climate change. In the United States, the burning of fossil fuels, particularly for the power and transportation sectors, accounts for about three-quarters of our carbon emissions.