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August Mouchout is credited with the creation of the first active solar motor. In 1861, he developed a steam engine fueled completely by the sun.

Wind is created when the sun hits the earth. The air above water and the air above the ground heat at different rates. Since the air above the ground heats faster, the warm air from the ground hits the atmosphere first. It then is pushed out toward the sea. As the air heads toward the sea, it gets colder and sinks back down to the sea level. This creates a current pushing the sea air toward the land in the form of wind. The stronger the sun's energy on the land and water, the faster the wind will circulate.

As the gearbox turns, it feeds the RPM into the generator, which transfers the energy into usable electrical energy and stores it. Large cables are attached to the generator that feed the electrical currents from the generators of all the wind turbines on the farm into one electrical storage area. The energy can then be transported through power lines around the area for commercial and home usage.

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The fossil fuels are then burned to heat water.

Carbon dioxide contributes to global warming by absorbing heat energy from the earth, trapping it and preventing its release into space.

Earth is composed mainly of bodies of water---about 71 percent of the earth's surface is water. Ninety-seven percent of that is found in the oceans. Because the earth's surface is curved, the sun heats it unevenly. This causes winds to blow across the water and generate waves. The sun and moon also exert their gravitational pull on the earth, triggering wave-producing tides. Wave motion energy can be harnessed and generated into electricity.

Because waves are erratic, the amount of energy a wave generator can produce is unpredictable and, therefore, cannot be used as a sole reliable energy source.

accidental hydraulic fluid leaks can cause a major environmental problem.

A collision could cause a hydraulic spill or leak and become an environmental hazard.

For hundreds of years mankind has been making use of the energy and power generated by wind. Whether it has been to travel the world, manufacture products, or in the modern age to generate electricity, wind has provided the means. And while there have been dozens of different methods over the years, new technology is still being invented to make even further use of this ancient power source.

Windmills were one of the second most widespread uses of wind energy. The variety of uses that windmills were put to included grinding grain, as well as pumping water, up until the industrial revolution where the windmill was mostly replaced by the steam engine.

Unlike fossil fuels, wave power doesn't cause air pollution.

Hydrogen Hydrogen can be produced domestically through electrolysis (the process of splitting the hydrogen and oxygen particles apart in a water molecule). When used in automobiles, a hydrogen-powered car will emit only water vapor from its tailpipe. Hydrogen vehicles use fuel cells as their source of power, and currently this technology is too expensive for most consumers. If the costs of fuel cell technology and hydrogen production can decrease, hydrogen may become one of the most environmentally friendly and sustainable sources of energy available.

A wind turbine gathers energy from the wind through the mechanical rotation of its blades. This is mechanically generated energy from kinetic energy that is then turned into electrical energy.