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These are great motivating facts for those who are still wondering about the viability of renewable energy!

-  The earth receives so much sunlight every day that if all of it were to be converted into useful energy efficiently for just one day, the energy needs of the whole world could be met for one whole year

-  Solar Energy has been used very widely since ancient times in the world. It was used for simple purposes such as hanging wet clothes in the sun in order to dry them. Farmers in ancient Egypt discovered innovative methods to ensure crops were planted in the right direction relative to the sun's path across the sky to make growing  more efficient.
-  Silicon from just one ton of sand - used to manufacture solar cells - could produce as much electricity as burning 500,000 tons of coal.
-  More than 10,000 homes in the United States are powered entirely by solar energy.
- As of 2008, the 3rd largest industrialized nation in the world,  Germany, was over 45% dependent on renewable energy resources, with a viable working model and plan for 100% renewable energy dependence in the future. They've proven that there no financial or physical barriers to becoming totally renewable energy dependent - only mental ones.

 -  The speed of light is 186,282 miles per second and it takes light approximately 8 minutes to reach Earth. So, light covers the distance of over 90 million miles from the sun in less than 10 minutes
- Plants grow through a process called photosynthesis in order to convert solar energy into food. The plants serve as food for humans and other animals which humans may eat. Therefore we get our energy from the food we eat. In this way, we are dependent on the sun either directly or indirectly to supply our bodies with energy.
- It takes approximately 8 calories of fossil fuel energy to produce only 1 calorie of food energy for human consumption. Manual farming practices used in pre-industrial times consumed approximately 1 calorie of energy to produce approximately 10 calories of food energy for humans.

-  Most governments offer many tax incentives and rewards for those individuals who make use of renewable sources of energy such as solar and wind energy.

- One wind turbine can produce enough electricity to power up to 300 homes.
- Wind farms in the US currently produce enough electricity to meet the needs of more than 600,000 families
- The largest wind turbine in the world, located in Hawaii, stands 20 stories tall and has blades the length of a football field.
- In 200 B.C., people in China and the Middle East used windmills to pump water and grind grain.
- An average wind speed of 14 miles per hour is needed to convert wind energy into electricity
- Wind energy is very exploited in Germany where Germany leads the way with 8750 MW of electrical energy produced from wind energy

- Water power has been used for grinding grain for more than 2,000 years.
- Worldwide, water is the most commonly used renewable energy resource, providing enough power to meet the needs of 28.3 million consumers.
- Hydro power currently provides about 10 percent of the electricity in the United States

- The Gulf Stream contains enough hydro energy to power the entire continent of North America
- Hydropower's advantage over other renewable energy sources is the fact that average rainfall is highly predictable and therefore output is reliable and river flow doesn't fluctuate from minute to minute like is the case with wind energy.

- Volcanoes and geysers are examples of geothermal energy
- Geothermal Energy has been around for as long as the Earth has existed. "Geo" means earth, and "thermal" means heat. So, geothermal means earth-heat.
- In 1864, a hotel in Oregon heated rooms using geothermal energy from underground hot springs.
- For every 100 meters you go below ground, the temperature of the rock increases about 3 degrees Celsius. Or for every 328 feet below ground, the temperature increases 5.4 degrees Fahrenheit.
- Geothermal energy is called a renewable energy source because the water is replenished by rainfall, and the heat is continuously produced by the earth.
- About 10.000 years ago, Paleo-Indians used hot springs in North America for cooking. Areas around hot springs were neutral zones. Warriors of fighting tribes would bathe together in peace.
- Geothermal heating is a method of heating and cooling a building. It takes advantage of the natural stable warmth stored in the earth. Geothermal heating is flame-less, therefore producing no health and safety concerns as associated with fossil fuels.

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02 July 2013

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