... resources, or control of valuable products such as diamonds or coffee. Combatant groups can be entities from opposition, communal or the government and are often members of a particular class, ethnic group, or religion struggling for right to use to natural resources, social services, or political power. After food and water, energy is our most basic need. Modern cultures are founded almost solely around the production and consumption of energy. Many people believed that our main concern was the fact that supplies will eventually run out, when in fact the greater concern about energy is that our current energy models are unsustainable because of environmental and economic issues. Our current energy models rely mainly on hydrocarbon fuels like oil, natural gas, and coal which provide nearly 80 percent of the world's energy. However, this can cause smog and acid rain, and may be linked to global warming. We also use long-established ...

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