http://www.ucmp.berkeley.edu/glossary/gloss5/bfull
/tundra.html#arctic

http://environment.nationalgeographic.com.au/environment/habitats/tundra-profile/

http://oildrillingh.tripod.com/id14.html

http://www.tundraanimals.net/

http://beyondpenguins.ehe.osu.edu/issue/tundra-life-in-the-polar-extremes/life-in-the-tundra

http://www.blueplanetbiomes.org/tundra_plant_page.htm

http://beyondpenguins.ehe.osu.edu/issue/polar-plants/plants-of-the-arctic-and-antarctic

http://www.bbc.co.uk/schools/gcsebitesize/geography/ecosystems/tundra_rev2.shtml

http://www.cotf.edu/ete/modules/msese/earthsysFlr/tundraA.html

http://animals.mom.me/herbivores-tundra-2239.html

http://www.aitc.sk.ca/saskschools/arctic/Awildlife.html

http://www.nhptv.org/natureworks/rockptarmigan.htm#4

http://homepages.uel.ac.uk/u0406226/webpages/list.html

http://www.blueplanetbiomes.org/arctic_ground_squirrel.htm

http://traveltips.usatoday.com/carnivores-live-tundra-63797.html

http://www.exploringnature.org/db/detail.php?dbID=5&detID=13

http://www.coolantarctica.com/Antarctica%20fact%20file/wildlife/Arctic_animals/

http://www.alaskakids.org/index.cfm/cool%20critters/Featured%20Critters/Small%20Mammals/2617

http://icb.oxfordjournals.org/content/44/2/85.full

http://tundrabiomeexplaination.weebly.com/soil-profile-and-succession.html

http://www.appstate.edu/~neufeldhs/ecosystems/biomestundra.htm

http://science.opposingviews.com/wind-tundra-23826.html

http://www.arctic.noaa.gov/reportcard/sea_surface_temperature.html

https://prezi.com/dclly6q5efwp/
arctic-tundra-biome/

http://arctic.ru/geography-population/arctic-ocean

http://coastal.er.usgs.gov/ocean-acidification/polar.html

www.amap.no/documents/download/1126


http://www.msi.ucsb.edu/services/analytical-lab/seawater-nutrients-fia

http://www.defenders.org/polar-bear/basic-facts

http://extension.oregonstate.edu/gardening/node/847

http://www.polarbearsinternational.org/about-polar-bears/essentials/

http://plantwatch.naturealberta.ca/choose-your-plants/purple-saxifrage/

http://nature.ca/discover/treasures/plnts/tr2/sax_e.cfm

Images 

http://www.beforethey.com/tribe/chukchi?photo=0

http://wallpaperus.org/caribou-1920x1080-wallpaper-1631614/

http://animal-picture.com/artic-animals.html/artic-animals-6-jpg

http://advocacy.britannica.com/blog/advocacy/2009/12/polar-bears-and-global-warming/

whatthefocus.wordpress.com