Holovanivsk Raion and Renewable resource: Difference between pages

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A natural resource qualifies as a '''renewable resource''' if it is replenished by natural processes at a rate comparable or faster than its rate of consumption by humans or other users. Solar radiation, tides, winds and hydroelectricity are ''perpetual resources'' that are in no danger of long-term availability. Renewable resources may also mean [[commodity|commodities]] such as [[wood]], [[paper]], and [[leather]].
''' Holovanivskyi Raion''' is a [[raion]] (district) of the [[Kirovohrad Oblast]] in central [[Ukraine]].


Some natural renewable resources such as [[geothermal power]], fresh water, timber, and biomass must be carefully managed to avoid exceeding the environment's capacity to replenish them. A [[life cycle assessment]] provides a systematic means of evaluating renewability.
{{Kirovohrad Oblast}}


The term has a connotation of [[sustainability]] of the [[natural environment]]. [[Gasoline]], [[coal]], [[natural gas]], [[diesel]], and other commodities derived from [[fossil fuel]]s are non-renewable. Unlike fossil fuels, a renewable resource can have a [[sustainable yield]].
{{coord missing|Ukraine}}


==Renewable Energy==
[[Category:Kirovohrad Oblast]]
[[Image:Windpark Galicia.jpg|thumb|right|A [[wind farm]] in [[Spain]].]]
[[Image:Available Energy-4.png|thumb|right|Total solar (left), wind, hydropower and geothermal energy resources compared to global energy consumption (lower right).]]
{{main|Renewable energy}}
<!-- This section is kept short on purpose - see [[Wikipedia:Summary style]]-->
[[Solar power]] is the energy derived directly from the [[Sun]]. It is the most abundant source of energy on Earth. The fastest growing type of alternative energy, increasing at 50 percent a year, is the [[photovoltaic cell]], which converts sunlight directly into energy. <ref> "The Power and the Glory." The Economist 21 June 2008: 6.</ref> The Sun yearly delivers more than 10,000 times the energy that humans currently use. <ref> Sawin, Janet. "Charting a New Energy Future." State of the World 2003. By Lester R. Brown. Boston: W. W. Norton & Company, Incorporated, 2003.</ref>


[[Wind power]] is derived from uneven heating of the Earth's surface from the Sun and the warm core. Most modern wind power is generated in the form of electricity by converting the rotation of [[Wind turbine design|turbine blade]]s into electrical current by means of an electrical generator. In [[windmill]]s (a much older technology) wind energy is used to turn mechanical machinery to do physical work, like crushing grain or pumping water.
{{Ukraine-geo-stub}}

[[Hydropower]], energy derived from the movement of water in rivers and oceans (or other energy differentials), can likewise be used to generate electricity using turbines, or can be used mechanically to do useful work. It is a very common resource.

[[Geothermal power]] directly harnesses the natural flow of heat from the ground. The available energy from natural decay of radioactive elements in the earth's [[crust]] and [[mantle]] is approximately equal to that of incoming solar energy.

Alcohol derived from [[corn]], [[sugar cane]], [[switchgrass]], etc. is also a [[renewable]] source of energy. Similarly, oils from plants and seeds can be used as a substitute for non-renewable diesel. Methane is also considered as a renewable source of energy.

== Renewable materials ==
{{See|bioplastics|bioasphalt}}

===Agricultural products===

Techniques in [[agriculture]] which allow for minimal or controlled environmental damage qualify as [[sustainable agriculture]]. Products ([[food]]s, [[chemical]]s, [[biofuel]]s, etc) from this type of agriculture may be considered "sustainable" when [[process]]ing, [[logistics]], etc. also have sustainable characteristics.

Similarly, [[forest product]]s such as [[lumber]], [[plywood]], [[paper]] and [[chemical]]s, can be renewable resources when produced by [[sustainable forest management]] techniques.

===Water===
{{see|Water resources}}
[[Water]] can qualify as a renewable material when carefully controlled usage, treatment, and release are followed. If not, it would become a non-renewable resource at that location. For example, [[groundwater]] could be removed from an [[aquifer]] at a rate greater than the [[Sustainability|sustainable]] recharge. Removal of water from the pore spaces may cause permanent compaction ([[subsidence]]) that cannot be reversed.

==See also==
{{portal|Sustainable development}}
* [[Nature's services]]
* [[Scarcity]]

==References==
{{reflist}}
{{Refimprove|date=October 2008}}

==Further reading==
* Sawin, Janet. "Charting a New Energy Future." State of the World 2003. By Lester R. Brown. Boston: W. W. Norton & Company, Incorporated, 2003.

[[Category:Renewable resources]]

[[cy:Adnodd adnewyddadwy]]
[[de:Nachwachsender Rohstoff]]
[[et:Taastuv ressurss]]
[[fr:Ressource renouvelable]]
[[ru:Возобновляемые ресурсы]]
[[simple:Renewable resource]]
[[fi:Uusiutuvat luonnonvarat]]
[[sv:Förnybar resurs]]

Revision as of 04:25, 13 October 2008

A natural resource qualifies as a renewable resource if it is replenished by natural processes at a rate comparable or faster than its rate of consumption by humans or other users. Solar radiation, tides, winds and hydroelectricity are perpetual resources that are in no danger of long-term availability. Renewable resources may also mean commodities such as wood, paper, and leather.

Some natural renewable resources such as geothermal power, fresh water, timber, and biomass must be carefully managed to avoid exceeding the environment's capacity to replenish them. A life cycle assessment provides a systematic means of evaluating renewability.

The term has a connotation of sustainability of the natural environment. Gasoline, coal, natural gas, diesel, and other commodities derived from fossil fuels are non-renewable. Unlike fossil fuels, a renewable resource can have a sustainable yield.

Renewable Energy

A wind farm in Spain.
Total solar (left), wind, hydropower and geothermal energy resources compared to global energy consumption (lower right).

Solar power is the energy derived directly from the Sun. It is the most abundant source of energy on Earth. The fastest growing type of alternative energy, increasing at 50 percent a year, is the photovoltaic cell, which converts sunlight directly into energy. [1] The Sun yearly delivers more than 10,000 times the energy that humans currently use. [2]

Wind power is derived from uneven heating of the Earth's surface from the Sun and the warm core. Most modern wind power is generated in the form of electricity by converting the rotation of turbine blades into electrical current by means of an electrical generator. In windmills (a much older technology) wind energy is used to turn mechanical machinery to do physical work, like crushing grain or pumping water.

Hydropower, energy derived from the movement of water in rivers and oceans (or other energy differentials), can likewise be used to generate electricity using turbines, or can be used mechanically to do useful work. It is a very common resource.

Geothermal power directly harnesses the natural flow of heat from the ground. The available energy from natural decay of radioactive elements in the earth's crust and mantle is approximately equal to that of incoming solar energy.

Alcohol derived from corn, sugar cane, switchgrass, etc. is also a renewable source of energy. Similarly, oils from plants and seeds can be used as a substitute for non-renewable diesel. Methane is also considered as a renewable source of energy.

Renewable materials

Agricultural products

Techniques in agriculture which allow for minimal or controlled environmental damage qualify as sustainable agriculture. Products (foods, chemicals, biofuels, etc) from this type of agriculture may be considered "sustainable" when processing, logistics, etc. also have sustainable characteristics.

Similarly, forest products such as lumber, plywood, paper and chemicals, can be renewable resources when produced by sustainable forest management techniques.

Water

Water can qualify as a renewable material when carefully controlled usage, treatment, and release are followed. If not, it would become a non-renewable resource at that location. For example, groundwater could be removed from an aquifer at a rate greater than the sustainable recharge. Removal of water from the pore spaces may cause permanent compaction (subsidence) that cannot be reversed.

See also

References

  1. ^ "The Power and the Glory." The Economist 21 June 2008: 6.
  2. ^ Sawin, Janet. "Charting a New Energy Future." State of the World 2003. By Lester R. Brown. Boston: W. W. Norton & Company, Incorporated, 2003.

Further reading

  • Sawin, Janet. "Charting a New Energy Future." State of the World 2003. By Lester R. Brown. Boston: W. W. Norton & Company, Incorporated, 2003.