Biosphere - Revision history

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	[[Category:Done ~~2015~~-10-15]]		[[Category:Done 2026-06-01]]
	<onlyinclude>The '''biosphere''' is the sum of all regions on the Earth that support life. The biosphere is subdivided into five subcategories known as '''[[biome]]s''' which include forests, aquatic zones, deserts, ~~tundras~~, and grasslands.</onlyinclude>		<onlyinclude>The '''biosphere''' is the sum of all regions on the Earth that support life. The biosphere is subdivided into five subcategories known as '''[[biome]]s''' which include forests, aquatic zones, deserts, tundra, and grasslands.</onlyinclude>

	Essentially anywhere that life exists on Earth is a part of the biosphere.<ref name=nat>National Geographic. (Accessed October 18, 2015). ''Biosphere'' [Online], Available: http://education.nationalgeographic.com/encyclopedia/biosphere/</ref> Although the biosphere encompasses a ~~region~~ of 20 [[kilometer]]s from top to bottom, the vast majority of life can be found within 500 meters below sea level to 6 kilometers above it.<ref name=nat/>		Essentially anywhere that life exists on Earth is a part of the biosphere.<ref name=nat>National Geographic. (Accessed October 18, 2015). ''Biosphere'' [Online], Available: http://education.nationalgeographic.com/encyclopedia/biosphere/</ref> Although the biosphere encompasses a depth of 20 [[kilometer]]s from top to bottom, the vast majority of life can be found within 500 meters below sea level to 6 kilometers above it.<ref name=nat/>

	<gallery caption="Earth's Biosphere: The 5 Biomes" mode=packed heights=110px>		<gallery caption="Earth's Biosphere: The 5 Biomes" mode=packed heights=110px>
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	==Origin==		==Origin==
	~~''[[atmospheric oxygen\|main article]]''~~		The Earth's biosphere has been around for about 3.5 billion years. Early life forms existed without the free [[oxygen]] that life relies on today, and developed the incredible process of [[photosynthesis]]. These life forms created most of the plentiful [[atmospheric oxygen]] that is seen today through this process, which allows for more complex forms of life to thrive. Today there is a tremendous amount of [[biodiversity]] within the world's [[ecosystem]]s, and the biosphere as whole can be thought of as one large ecosystem.<ref name="nat" /> To learn more about the history of atmospheric oxygen please see [[atmospheric oxygen\|here]].

	The Earth's biosphere has been around for about 3.5 billion years. Early life forms existed ~~without~~ without the free [[oxygen]] that life relies on today, and developed the incredible process of [[photosynthesis]]. These life forms created most of the plentiful [[atmospheric oxygen]] that is seen today through this process, which allows for more complex forms of life to thrive. Today there is a tremendous amount of [[biodiversity]] within the world's [[ecosystem]]s, and the biosphere as whole can be thought of as one large ecosystem.<ref name=nat/> To learn more about the history of atmospheric oxygen please see [[atmospheric oxygen\|here]].

	==Human impacts on the biosphere==		==Human impacts on the biosphere==
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	The biosphere and its components have been relatively stable for thousands of years, however humans have recently affected its flows. Acts like [[deforestation]] and burning of [[fossil fuel]]s have negative [[environmental impact]]s which directly affect the biosphere. [[Carbon dioxide]] and [[emissions]] of various [[pollutant]]s adversely effect all kinds of life forms.		The biosphere and its components have been relatively stable for thousands of years, however humans have recently affected its flows. Acts like [[deforestation]] and burning of [[fossil fuel]]s have negative [[environmental impact]]s which directly affect the biosphere. [[Carbon dioxide]] and [[emissions]] of various [[pollutant]]s adversely effect all kinds of life forms.

	One specific concern is the [[greenhouse gas]] emissions that are attributed to [[global warming]]. The change this has on the global [[climate]] is of direct concern to the biosphere. [[Flood]]s and [[drought]]s are expected to intensify, which can lead to many other consequences such as [[famine]].<ref name=cc>National Drought Mitigation Center. (accessed October 18, 2015). ''Climate Change'' [Online], Available: http://drought.unl.edu/DroughtBasics/ClimateChange.aspx</ref> Melting of polar ice is another result of warming, which could displace many forms of life, as well as cause extreme events all around the globe.		One specific concern is the [[greenhouse gas]] emissions that are attributed to [[global warming]]. The change this has on the global [[climate]] is of direct concern to the biosphere. [[Flood]]s and [[drought]]s are expected to intensify, which can lead to many other consequences, such as [[famine]].<ref name=cc>National Drought Mitigation Center. (accessed October 18, 2015). ''Climate Change'' [Online], Available: http://drought.unl.edu/DroughtBasics/ClimateChange.aspx</ref> Melting of polar ice is another result of warming, which could displace many forms of life, as well as cause extreme events all around the globe.

	===Biosphere reserves===		===Biosphere reserves===
	Many groups are putting in efforts to lessen the strain that humans put on the biosphere. There are ~~563~~ biosphere reserves worldwide which exist to establish a working, balanced relationship between people and the natural world.<ref name=nat/>		Many groups are putting in efforts to lessen the strain that humans put on the biosphere. There are 784 biosphere reserves worldwide as of 2026, which exist to establish a working and balanced relationship between people and the natural world.<ref name=nat/><ref>UNESCO (2026). (Accessed May 25, 2026). ''Man and the Biosphere Programme (MAB)'' [Online]. Available: https://www.unesco.org/en/mab</ref>

			[https://www.unesco.org/en/mab/map Click here] for an interactive map of all biosphere reserves around the globe.

			== For Further Reading ==

	[~~http~~:~~//www.unesco.org/mabdb/bios1-2.htm Click here~~] ~~for an interactive map of all biosphere reserves around the globe.~~		* [[Biome]]
			* [[Atmospheric oxygen]]
			* [[Biodiversity]]
			* [[Ecosystem]]
			* Or explore a [[Special:Random\|random page]]

	==References==		==References==
	{{reflist}}		{{reflist}}[[Category:Uploaded]]

J.williams: 1 revision imported

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Jmdonev at 00:46, 23 October 2015

2015-10-23T00:46:00Z

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[[Category:Done 2015-10-15]]
<onlyinclude>The '''biosphere''' is the sum of all regions on the Earth that support life. The biosphere is subdivided into five subcategories known as '''[[biome]]s''' which include forests, aquatic zones, deserts, tundras, and grasslands.</onlyinclude>

Essentially anywhere that life exists on Earth is a part of the biosphere.<ref name=nat>National Geographic. (Accessed October 18, 2015). ''Biosphere'' [Online], Available: http://education.nationalgeographic.com/encyclopedia/biosphere/</ref> Although the biosphere encompasses a region of 20 [[kilometer]]s from top to bottom, the vast majority of life can be found within 500 meters below sea level to 6 kilometers above it.<ref name=nat/>

<gallery caption="Earth's Biosphere: The 5 Biomes" mode=packed heights=110px>
File:coralreef.jpg|[[Biome#Aquatic|Aquatic]].<ref>Wikimedia Commons [Online], Available: https://en.wikipedia.org/wiki/Great_Barrier_Reef#/media/File:Coral_Outcrop_Flynn_Reef.jpg</ref>
File:monument-valley-towers.jpg|[[Biome#Desert|Desert]].<ref>Public Domain Images [Online], Available: http://www.public-domain-image.com/nature-landscape/desert/slides/monument-valley-towers.html</ref>
File:tundra.jpg|[[Biome#Tundra|Tundra]].<ref>Public Domain Images [Online], Available: http://www.public-domain-image.com/free-images/fauna-animals/birds/swans-pictures/tundra-swan/tundra-swans-in-a-lake-with-mt-shasta-in-the-background</ref>
File:forestbiome.jpg|[[Biome#Forest|Forest]].<ref>Wikimedia Commons [Online], Available: https://en.wikipedia.org/wiki/Northeastern_coastal_forests#/media/File:Posts_Brook_from_Norvin_Green_State_Forest_Lower_Trail.jpg</ref>
File:grasslands.jpg|[[Biome#Grassland|Grassland]].<ref>Geograph (Accessed Sept. 1, 2015) [Online], Available: http://www.geograph.org.uk/photo/1360416</ref>
</gallery>

==Origin==
''[[atmospheric oxygen|main article]]''

The Earth's biosphere has been around for about 3.5 billion years. Early life forms existed without without the free [[oxygen]] that life relies on today, and developed the incredible process of [[photosynthesis]]. These life forms created most of the plentiful [[atmospheric oxygen]] that is seen today through this process, which allows for more complex forms of life to thrive. Today there is a tremendous amount of [[biodiversity]] within the world's [[ecosystem]]s, and the biosphere as whole can be thought of as one large ecosystem.<ref name=nat/> To learn more about the history of atmospheric oxygen please see [[atmospheric oxygen|here]].

==Human impacts on the biosphere==

The biosphere and its components have been relatively stable for thousands of years, however humans have recently affected its flows. Acts like [[deforestation]] and burning of [[fossil fuel]]s have negative [[environmental impact]]s which directly affect the biosphere. [[Carbon dioxide]] and [[emissions]] of various [[pollutant]]s adversely effect all kinds of life forms.

One specific concern is the [[greenhouse gas]] emissions that are attributed to [[global warming]]. The change this has on the global [[climate]] is of direct concern to the biosphere. [[Flood]]s and [[drought]]s are expected to intensify, which can lead to many other consequences such as [[famine]].<ref name=cc>National Drought Mitigation Center. (accessed October 18, 2015). ''Climate Change'' [Online], Available: http://drought.unl.edu/DroughtBasics/ClimateChange.aspx</ref> Melting of polar ice is another result of warming, which could displace many forms of life, as well as cause extreme events all around the globe.

===Biosphere reserves===
Many groups are putting in efforts to lessen the strain that humans put on the biosphere. There are 563 biosphere reserves worldwide which exist to establish a working, balanced relationship between people and the natural world.<ref name=nat/>

[http://www.unesco.org/mabdb/bios1-2.htm Click here] for an interactive map of all biosphere reserves around the globe.

==References==
{{reflist}}