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  • Drinking Water — Where It Comes From

    Surface water — like lakes, rivers, and reservoirs — is one major source of our drinking water. Groundwater is another. The surface water comes from precipitation, like rain and melting snow and ice. Surface water moves over land to collect in lower areas, so it can contain chemicals it absorbs along the way. Some cities, like Los Angeles and […] More

  • 15 Earth Homes

    Some earth homes take advantage of something called thermal mass, which basically means that the mass of a structure has some capacity to store heat. So the mass of a home can stay at a more constant temperature than temperatures outside the home due to the presence and absence of sunlight in a 24-hour period. Obviously, […] More

  • Home Solar & Wind Power From Pika Energy

    Pika Energy* makes a hybrid solar power/wind power system for homes. This offering is designed to take advantage of the strengths of both of those forms of renewable energy. In other words, solar power generation tapers off at the times of day that wind is strong, so combining solar and wind results in an energy […] More