Most of our energy comes from fossil fuels, but eventually we will run out. We will not, however, run out of sunshine or wind or waves. The center of the Earth will always be extremely hot, and fuels like switchgrass and algae can easily be regrown. These types of renewable energy-solar, wind, water, geothermal, and biomass-have the potential to power a cleaner future. The countries of North America have always had plentiful natural resources. But the exploitation of these resources comes at a cost, and in certain cases, some have wondered if that cost is too high. North American Natural Resources explores all facets of this vital aspect of our economy. Readers will investigate the natural history, human use, technology, environmental impact, and economic significance of the most significant resources on the continent

Mode of access: World Wide Web