All this damage is caused by the use of non-renewable fuels which provide electricity; it is the real cost of a light bulb.

At present, the main energy source used by humans is non-renewable fossil fuels.

They are expected to help our society move away from a dependence on non-renewable fuels and foster a healthy natural environment.

For example, ethanol production requires burning non-renewable fossil fuels to plant, grow, and harvest the crops and operate refineries.

You may be able to use waste to produce biofuel as an alternative to non-renewable fuels used for transport.

The essays argue points such as humanity's potential for exhausting the supply of non-renewable fuels and what could be done to prevent this.

Currently, a large majority of this energy comes from non-renewable fossil fuels.

Civilization relies heavily on industry, which operates largely on non-renewable and unclean fossil fuels.

Should we continue to pollute clean air, streams and rivers, and consume vast quantities of non-renewable fossil fuels for short-term gains at such high risks?

The sorry truth remains that 60 percent of a non-renewable fuel still goes unused at the power plant, never to be available again.