Environmental_Science_9e_Ch15 - CHAPTER 15 CHAPTER OUTLINE...

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Energy: Its Use and the Environment
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Chapter 6 / Exercise 5
Energy: Its Use and the Environment
Hinrichs/Kleinbach
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313 M ichael Reynolds is a maverick in the construction industry. Based in Taos, New Mexico, Reynolds builds homes that embody many of the principles of sustainability. The walls, for example, are constructed of used automobile tires that otherwise would have ended up in landfills. The recycled tires are packed with dirt from the construction site, using a local resource. They’re laid on top of one another like bricks to build thick walls. Cement Foundations of a Sustainable Energy System: Conservation and Renewable Energy Energy Conservation: Foundation of a Sustainable Energy System Renewable Energy Sources Is a Renewable Energy Supply System Possible? Spotlight on Sustainable Development 15-1: Air France Pledges Cuts in Carbon Emissions Spotlight on Sustainable Development 15-2: Reinventing the Automobile Spotlight on Sustainable Development 15-3: Greensburg, Kansas Goes Green Spotlight on Sustainable Development 15-4: A Solar Giant Grows Taller Viewpoint: Bird Kills from Commercial Wind Farms: Fact or Fiction? Point/Counterpoint: The Debate over Hydrogen Energy 15.3 15.2 15.1 CHAPTER OUTLINE CHAPTER 15 I’d put my money on the sun and solar energy. What a source of power! I hope we don’t have to wait ‘til oil and coal run out before we tackle that. —Thomas Edison
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Energy: Its Use and the Environment
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Chapter 6 / Exercise 5
Energy: Its Use and the Environment
Hinrichs/Kleinbach
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314 PART IV. Resource Issues: Solutions for a Sustainable Society stucco or earthen plaster is then applied to the tire walls, creating an appealing design ( FIGURE 15-1a ). Reynolds’s houses, called Earthships , are generally built into the sides of hills, taking advantage of the Earth to shelter the house from summer heat and winter cold. With their thick walls and well- insulated ceilings, Earthships are heated by the sun and are extremely energy efficient. They stay cool in the summer and warm in the winter. Reynolds’s homes are designed with interior planters that line the south wall, permitting resi- dents to grow a variety of vegetables year round ( FIGURE 15-1b ). The plants are watered with waste- water from sinks and showers—commonly called gray water . In his most recent designs, Reynolds has devised a system to capture nutrients from toilet water. The waste is fed into specially lined out- door planters, where it is broken down by bacte- ria and other microorganisms. The nutrients are used by plants growing in the planters. Besides being heated by the sun, Reynolds’s homes generate their own electricity from sunlight and are equipped with efficient lighting systems and appliances. His homes even capture and purify rainwater and snowmelt off the roof for cooking, drinking, bathing, washing dishes, and other uses. Earthships are designed for self-sufficiency and environmental responsibility. They are unlike con- ventional homes, which Reynolds likens to pa- tients in intensive care units that depend on outside support in the form of food, water, and energy.

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