energy - renewable technology (wind, solar, hyrdro)

Renewable energy, often referred to as green energy, will be the most important kind of energy in the near future. The current society hardly relies on fossil fuels like oil, gas and coal, most of them coming from political instable regions like the Middle East. With supplies rapidly dwindling, an energy crisis will never stay too far away.
All fossil fuels contain a high percentage of carbon an hydrocarbons, which are normally in the earth’s crust. When burning these materials, most of those carbon chains will go into the atmosphere under the form of the greenhouse gas carbon dioxiode (CO2). This greenhouse gases cause an increase of the average temperature of the earth’s near-surface air and oceans

We can reduce the emission of greenhouse gasses, produced by our energy production, by switching to renewable energy. The required energy can be obtained from a wide variety of sources. The most important are:

• Solar
• Wind
• Ocean’s
• Water
• Geothermal
• Biomass

http://www.renewable-energy-info.com/