fuel Essay Examples
Essay on greenhouse effect In the U.S., our energy-related activities are known to account for three-quarters of our human-generated greenhouse gas emissions. These are usually expressed in the form of carbon dioxide emissions from burning fossil fuels. Also, more than half the energy-related emissions are known to come from large stationary sources.
Alternative Energy essay: Renewable Sources The primary user of hydrogen as an energy fuel is NASA within the framework of its space program. Specifically, fuel cells (hydrogen batteries) are applied to power electrical systems of the shuttle. Hydrogen fuel cells are used as efficient means to make electricity. However, the construction of such large batteries (which application excludes power lines) is still expensive to build, whereas smaller fuel cells are actively applied to power electric cars.