Maturity
Fossil fuel technology has been used for over a hundred years. Thus, it does not require time-consuming or expensive research to become practical.
Efficiency
The production stations, transportation networks and delivery lines for converting fuels into energy are widespread and already in place. This makes energy easy and efficient to distribute.
Byproducts
Fossil fuel production offers many useful byproducts aside from energy. Chief among these are the plastics used in everything from computers and appliances to hospital equipment and storage containers.
Non-Renewable
These fuels represent a finite resource that cannot be replaced. Once they run out, what can we use to power the machines that depend on them?
Polluting
Powering cars, electrical plants and factories with these fuels produces emissions such as hydrocarbons. These pollutants not only foul the air but cause climate disruptions through global warming.
Environment
Mining for fuels such as coal and oil damages the environment by destroying habits and marring the landscape. Furthermore, liquid runoff from these processes can pollute water both above and underground.