Land Degradation from stevenlevymath

Tags: Math, science, climate change, graph, college, environment, videoscribe, animation

Narration: This is Steven Levy and this is stevenlevymath. This Video is about land degradation.

Narration: The data for this video came from the UN's report "Livestock's Long Shadow" unless stated other wise, 

Reference: "Livestock's Long Shadow" from the UN, page 29 to 30.

Reference:
Per wikipedia: total earth surface=510, water 361, land 149 in millions of sq. km.

Narration: According to Wikipedia, the Surface area of the earth: 510 million sq km. Water is 361 and land is 149 square km.

Narration: According to Wikipedia, arable land 19 million sq km, Pasture is 39, Forest is 48. And urban is 2 million sq km.

Reference, Wikipedia: Land: arable land is13% (19 km sq), pasture 26% (39), forest 32% (48), urban 1.5% (2).

Narration: 10.9 million sq km is degraded by water, 5.5 by wind, 2.4 by chemical, and 0.8 is physical.


Advanced Image Search: https://www.google.com/advanced_image_searchI used this site to find images in Creative Commons.

Here's how I attributed works:
NAME_OF_WORK=
AUTHOR_NAME=
AUTHOR_EMAIL=
URL_OF_WORK=
FILE_NAME=
UPLOAD_DATE=
LICENSE=under a Creative Commons Attribution 2.0. Full terms at http://creativecommons.org/licenses/by/2.0.

Photos I used:
===========

Narration: Water does the most damage.
Degraded by Water
NAME_OF_WORK=Houghall Farm, Severe & Catastrophic Erosion

AUTHOR_NAME=Trevor Littlewood
AUTHOR_EMAIL=http://www.geograph.org.uk/profile/39198
URL_OF_WORK=http://s0.geograph.org.uk/geophotos/01/41/56/1415690_9cd09683.jpg
LICENSE=under a Creative Commons Attribution 2.0.
Full terms at http://creativecommons.org/licenses/by/2.0.

Narration: Wind strips the topsoil.
Degraded by Wind
NAME_OF_WORK=Dust storm approaching Stratford, Texas. Dust Bowl surveying in Texas
AUTHOR_NAME=NOAA George E. Marsh Album
AUTHOR_EMAIL=coastsurveycommunications@noaa.gov
URL_OF_WORK=https://upload.wikimedia.org/wikipedia/commons/3/34/Dust-storm-Texas-1935.png
LICENSE=under a Creative Commons Attribution 2.0.
Full terms at http://creativecommons.org/licenses/by/2.0.

 
Narration: Chemical pollution is expensive to repair.
Degraded by Chemicals
NAME_OF_WORK=red water pollution

AUTHOR_NAME=Auckland Council,Auckland,Australia
AUTHOR_EMAIL=http://aucklandcouncil.custhelp.com/app/ask
URL_OF_WORK=http://www.aucklandcouncil.govt.nz/EN/environmentwaste/pollution/Pages/home.aspx
LICENSE=under a Creative Commons Attribution 2.0.
Full terms at http://creativecommons.org/licenses/by/2.0.

Narration: Mining operations cause physical degradation.
Physical Degradation
Strip coal mining By Stephen Codrington, CC BY 2.5
NAME_OF_WORK=Strip coal mining
AUTHOR_NAME=Stephen Codrington
AUTHOR_EMAIL=
URL_OF_WORK=https://commons.wikimedia.org/w/index.php?curid=221253
FILE_NAME=Strip coal mining.jpg
UPLOAD_DATE=12 July 2005
LICENSE=under a Creative Commons Attribution 2.5. Full terms at http://creativecommons.org/licenses/by/2.5/



"Stop the Koch Brothers" by Free Press/ Free Press Action Fund licensed under CC 2.0

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