Short term energy crises are also a concern of energy development. Extrapolations lack plausibility, particularly when they predict a continual increase in oil consumption. Energy production usually requires an energy investment. Drilling for oil or building a wind power plant requires energy. The fossil fuel resources that are left are often increasingly difficult to extract and convert. They may thus require increasingly higher energy investments. If investment is greater than the value of the energy produced by the resource, it is no longer an effective energy source. These resources are no longer an energy source but may be exploited for value as raw materials.
New technology may lower the energy investment required to extract and convert the resources, although ultimately basic physics sets limits that cannot be exceeded. The energy for the Green Revolution was provided by fossil fuels in the form of fertilizers natural gas , pesticides oil , and hydrocarbon fueled irrigation.
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With contemporary space industry 's economic activity   and the related private spaceflight , with the manufacturing industries , that go into Earth's orbit or beyond, delivering them to those regions will require further energy development. Space-based solar power has been in research since the early s. Space-based solar power would require construction of collector structures in space. The advantage over ground-based solar power is higher intensity of light, and no weather to interrupt power collection.
From Wikipedia, the free encyclopedia. Further information: Outline of energy development. Biomass heat. Biomass electric. Solar PV. Solar CSP. World total primary energy production. Total world primary energy production quadrillion Btu . United States.
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Energy flow charts show the relative size of primary energy resources and end uses in the United States, with fuels compared on a common energy unit basis Natural gas. Electricity generation. Residential, Commercial, Industrial, transportation. Rejected energy waste heat. Energy services. Further information: World energy resources and consumption.
See also: Worldwide energy supply , Energy and society , Energy planning , and Energy policy. Main articles: Fossil fuel and Peak oil. Main article: Economics of new nuclear power plants.
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This study does not include fossil fuel related cancer and other indirect deaths created by the use of fossil fuel consumption in its "severe accident", an accident with more than 5 fatalities, classification. The Guardian. Archived from the original on 2 February The New York Times. Archived from the original on February 5, Environmental Science.
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