Released more and more scientists today agree that global warming is a serious problem and the cause of global warming, carbon dioxide in the atmosphere by burning fossil fuels. Politicians, as they waved increases in property damaged look, injuries and even deaths due to natural disasters, which have become worse in recent decades seem. Because fossil fuels, the source of global changes in the atmosphere appear to have people look at other ways to produce energy began. In addition to causing atmospheric change, it is the reality that we run out of fossil fuels. The world economy is based on fossil fuels, but they are a limited resource. At some point we will run out of them. Fossil fuels are not a sustainable source. Two methods of generating energy with little impact on the environment and sustainable solar and wind energy.
First we take a look at solar energy. Solar energy is, of course, power derived from the energy of the sun. The limitation of this energy is the sun. The sun will never run, except at night. Solar power sources are designed to compensate for the downtime of night or cloudy days, but solar power works best in sunny climates. Solar energy is used usually in one of three ways: heat to generate electricity and to desalinate salt water. Solar heating are generally active or passive in design. An active solar system uses pumps water that is heated by the sun, circulate Passive solar systems use the nature of water to create circulation. This method is based on the fact that heat energy wants to move to areas with lower heat. In power generation, solar energy through solar cells, solar energy is used to convert it into electricity. These cells are very used to power calculators for decades. In solar desalination, the power used the sun to evaporate water to separate them from the salt and other undesirable minerals.
Another type of clean, renewable energy from the wind. Wind power, while more popular accounts, is still just under 1% of the power supply to the world. It is hard to believe considering how much the wind blows! Wind power is generally used with wind turbines. A centuries old version to the use of wind power is the windmill. These lovely structures used the wind to grind grains and pump water. Modern wind turbines are machines with the latest advanced technologies. More and more "wind farms" are sprouting all over the world. Finding these huge arrays of wind turbines on land and offshore. The largest in the U.S. onshore farms in California, Oregon and Washington. There are also appearing more and more the Midwest. Because of energy costs and damage to the environment, alternative energy sources that a lot of attention. Two of the most promising are solar and wind energy.