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After reading this module, students should be able to
Traditionally, the United States has relied on fossil fuels with minimal use of alternatives to provide power. The resources appeared to be unlimited and they were found within our borders. As our population has grown and our reliance on power increased, our resources are decreasing. As discussed in Module Environmental Challenges in Energy, Carbon Dioxide, Air and Water , this is particularly true of petroleum oil, which primarily powers transportation. Our electrical grid and transportation infrastructure of roads and highways support these fossil fuel dependent technologies. Fossil fuels store energy well, are available upon demand (not weather dependent), and are inexpensive. However, as we saw in Module Environmental Challenges in Energy, Carbon Dioxide, Air and Water there are many environmental, social, and even economic impacts of using these nonrenewable fuel sources that are not accounted for in the traditional methods of cost accounting. Further, the oil industry has been provided with many subsidies or tax incentives not available to other energy industries.
How do we move to a more sustainable energy economy? We need to pay more attention to the environment, humans, biodiversity, and respecting our ecosystems. It means finding ways to share our resources equitably both now and in the future so all people can have an equal opportunity to derive benefits from electricity, motorized transportation systems, industry, and conditioned indoor environments. At the same time, we must preserve human health and protect the natural world.
Energy use is one big piece of the sustainability puzzle, but it is not the only one. Changing the way we use energy is not easy because of infrastructure, the vision of the American Dream (own a house with a big yard, a big car, independence), changing government policy, lack of economic incentives, etc. Goals need to be set, plans made, and policy set to change the way we use energy. This chapter will discuss some of the commonly held views of where we can start and how we can change.
Since one of the major sustainability issues is that of climate change and the major cause of climate change is energy use, climate action planning is a valuable framework for examining sustainable energy practices. Greenhouse gas emissions result primarily from our building and transportation energy uses, and they are a measure of the amount of fossil fuels used to provide that energy. They do not directly represent other environmental emissions, although they mostly parallel other air pollutants. Greenhouse gas emissions do not express other ecosystem effects such as land use and water, but this planning allows for economical solutions. A climate action plan provides a roadmap for achieving greenhouse gas reduction targets within a specific timeline and uses a number of strategies.
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