Doğal kaynak: Revizyonlar arasındaki fark

 

Özellikle [[oksijen]], [[Su]], [[bitki örtüsü]], [[petrol]] gibi kaynakların büyük bir hızla azalması, canlıların yaşam alanlarını kısıtlamakta, çevresel felaketlere yol açabilecek iklim değişiklikleri yaratmaktadır.''(küresel ısınma)''

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'''Natural resources''' are naturally occurring substances that are considered valuable in their relatively unmodified ([[nature|natural]]) form. A natural resource's value rests in the amount of the material available and the [[demand]] for it. The latter is determined by its usefulness to production. A [[commodity]] is generally considered a natural resource when the primary activities associated with it are extraction and purification, as opposed to creation. Thus, [[mining]], [[petroleum]] [[extraction]], [[fishing]], [[hunting]], and [[forestry]] are generally considered natural-resource industries, while [[agriculture]] is not. The term was introduced to a broad audience by [[E.F. Schumacher]] in his 1970s book [[Small is Beautiful]].<ref>{{cite book|author=E.F. Schumacher|title=Small Is Beautiful|edition= |publisher=Hartley & Marks Publishers|year=December 1999|id=ISBN 0-88178-169-5}}</ref> The term is defined in the United States by the United States Geological Survey as "The Nation's natural resources include its minerals, energy, land, water, and biota." <ref>{{http://www.usgs.gov/themes/resource.html}}</ref>

* [http://www.nrcan.gc.ca/statistics/factsheet.htm Statistics on Natural Resources in Canada]

* [http://news.bbc.co.uk/nolpda/ukfs_news/hi/newsid_5205000/5205430.stm Wind power dilemma for Lewis] a BBC News article about an island in the [[Hebrides]]

 

[[ca:Recursos naturals]]