Green energy, or greenergy, is a term used to describe all methods of creating energy that are environmentally friendly and non-polluting. Therefore may provide a solution to the ever-present problems of pollution and global warming. Scientists and entrepreneurs alike have developed many forms of green energy.

• Wind Power - The conversion of wind energy into electricity by using wind turbines that turn as the wind blows.
• Solar Power - The utilization of the radiant energy of the sun through solar panels that collect and convert the sun rays.
• Hydropower - The use of moving water to turn giant turbines which in turn create electricity.
• Anaerobic Digestion - The burning of "farts" from microorganisms after they digest biodegradable material to create electricity.
• Geothermal Power - The generation of electricity by harnessing the heat stored beneath the earth's surface to turn turbines as it rises into the atmosphere.
• Biomass Power - The burning of biomass material, such as dead plants and plant-like materials, to create energy. Biofuel is a cleaner alternative to fossil fuels.

Nuclear energy is arguably a form of green energy. The process of splitting atoms and harnessing the resulting energy is much cleaner than burning coal or oil. However, problems with disposing of nuclear waste lay claim that this method is neither efficient nor effective in cutting CO2 emissions.

Keep in mind, no form of energy creation is entirely impact-free. Even the manufacturing and installation of wind turbines creates CO2 emissions before the turbines can generate the first ampere of electricity.