So, while hydroelectricity is nonpolluting and renewable source of energy, it's important to consider other sources of renewable energy, such as solar and wind. The sun is an excellent source of energy. Solar energy can be used to heat water, homes, and experimental cars. The wind provides energy without pollution and has been used for centuries. In windy parts of the county, including areas in eastern Washington, wind farms are being built.
Wind farms use the power of the wind to turn huge turbines that produce electricity.
On a warm day, fill a sealable plastic bag with water and leave it in a sunny spot for two or three hours. When you turn up the heat on a chilly night, you must warm the air around you before you feel comfortable. That takes a lot of energy, which also means more pollution and greenhouse gases in the air. A sweater can keep you just as warm, without using any more energy. You'll find the clothes you choose don't have to be bulky and uncomfortable to be warm.