Sustainable energy is energy that is produced by renewable, natural sources that are not considered harmful to future generations. Examples of sustainable energy sources include wind, ocean waves and the sun. More »

Sustainable energy includes energy forms able to meet the growing needs of humans without compromising future demands, while renewable energy sources are widely available, naturally replenished and have low environmental... More »

Examples of sustainable development include crop rotation, sustainable construction practices, solar energy, wind energy and efficient water fixtures. The common element among sustainable development practices is that th... More »

Advantages of using geothermal energy include lower operating costs than many other fuel sources, pollution-free energy creation, and a reduction in the use of non-renewable fossil fuels such as coal and oil. Further adv... More » Science Earth Science

Earth's primary sources of heat are from radioactive decay, frictional heating and Earth's formation. Although Earth was created around 4.5 billion years ago, there is still leftover heat from its formation. More » and the websites of the ScienceDaily and Discover Magazine are three sources for current events and issues in earth science, as well as other branches of science. is a website of the Discovery ... More » Science Earth Science

Tidal energy works by using special generators to convert the energy produced by the rise and fall of ocean tides into electrical power. The force of the water drives turbines placed in tidal streams or installed in dams... More » Science Earth Science