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WE NEED TO START CONSIDERING THE EFFECTS ON OUR PLANET WHEN WE MAKE DECISIONS!

WE NEED TO START CONSIDERING THE EFFECTS ON OUR PLANET WHEN WE MAKE DECISIONS!. http://www.claybennett.com/pages/earth_d5.html. http://www.chrismadden.co.uk/eco/hourglass.html. HUMAN IMPACT on the BIOSPHERE A Changing Landscape. Food webs. Biogeochemical.

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WE NEED TO START CONSIDERING THE EFFECTS ON OUR PLANET WHEN WE MAKE DECISIONS!

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  1. WE NEED TO START CONSIDERING THE EFFECTS ON OUR PLANET WHEN WE MAKE DECISIONS! http://www.claybennett.com/pages/earth_d5.html http://www.chrismadden.co.uk/eco/hourglass.html

  2. HUMAN IMPACT on the BIOSPHEREA Changing Landscape

  3. Food webs Biogeochemical http://www.physicalgeography.net/fundamentals/images/nitrogencycle.jpg Humans participate in ____________ & _______________cycles Ecosystems provide us with a variety of _____________________ “GOODS & SERVICES” http://www.brevardcounty.us/mrrp/images/misc/boat_cartoon.jpg http://www.physicalgeography.net/fundamentals/images/nitrogencycle.jpg

  4. “GOODS & SERVICES”provided by ecosystems For image sources: see last slide __________________ ___________ production Nutrient ____________________ Solar energy Oxygen storage & recycling

  5. “GOODS & SERVICES”provided by ecosystems For image sources: see last slide ____________regulation __________ production ___________for wildlife Climate Food Habitats

  6. “GOODS & SERVICES”provided by ecosystems Images from: ____________________of human and industrial waste ___________________ and ______________________ detoxification Natural pest disease control

  7. “GOODS & SERVICES”provided by ecosystems Source of new ____________________ Air & water __________________ Soil _____________ and ___________ management medicines purification erosion runoff

  8. WORLD POPLUATION Current world population almost 7 BILLION Estimates predict it will reach 9 billion by 2050 Image from: http://www.sleepbamboo.com/planet_people.jpg World clock http://www.peopleandplanet.net/

  9. HUMAN ACTIVITIES can change local and global environments! ____________________ ____________________ _____________________ ___________________________ HUNTING AGRICULTURE INDUSTRY URBAN DEVELOPMENT Images from: http://www.cs.utexas.edu/users/s2s/latest/art1/src/proj/Art/cave_art/Hunters-Deer.jpg http://www.istockphoto.com/file_thumbview_approve/127525/2/istockphoto_127525_farming.jpg http://www.kidcrosswords.com/kidoutdoors/the%20environment/pollution_smokestacks.jpg http://www.lubee.org/images/about-threats-1.jpg

  10. HUNTING AND GATHERING hunted fished Throughout human history, people have ____________ and ___________ in rivers, and _____________ wild seeds, fruits, and nuts. We are still doing this today in many places. gathered http://www.amonsoquath.net/gallery/pages/chee.html http://www.travelwriter.co.za/let-the-train-strain_p2.html

  11. WHEN IT BECOMES A PROBLEM? _________________ ________________ OVERHUNTING POACHING http://msnbc.msn.com/id/8302763 http://www.aeffonline.org/images/poachersandelephant.jpg

  12. OVERHUNTING can put animal populations at risk of ____________ extinction Miss Waldron’s Red Colobus monkey Extinct 2000 Alagoas Curassow: extinct in wild 1980’s Dodo: extinct 1681 Moa: extinct 1500’s http://www.petermaas.nl/extinct/speciesinfo/misswaldronredcolobus.htm http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=100&m=0 http://lawyerkm.files.wordpress.com/2008/09/dodo_11.jpg http://en.wikipedia.org/wiki/Moa

  13. VOCAB Species that has died out = ______________ Species whose population size is rapidly declining and will become extinct if the trend continues = _____________ Species that is at risk of becoming endangered in the near future = ____________ http://www.southeastutah.org/photos/dino.jpg extinct endangered http://www.blackfootedferret.org/ threatened http://www.fresnochaffeezoo.com/images/bald-eagle.gif

  14. Image from: http://members.graphicsfactory.com/clip-art/image_files/tn_image/2/1313572-tn_TombStone001_92007.jpg According to the World Conservation Union (IUCN), 784 extinctions have been recorded since Some scientists estimate at the rate we are going 24 percent of plants and animals will be committed to extinction by 2050 We're talking about 1.25 million species! the 19th century http://www.igreens.org.uk/extinctions_predicted_from_globa.htm

  15. BIODIVERSITY THREAT http://www.lubee.org/images/about-threats-1.jpg Tropical rainforests are disappearing at a rate of about 80 acres per minute.

  16. EXAMPLE: WHALES During the 19th and the earlier part of 20th centuries, over-hunting led to a severe _________of whale populations, and to _______________ of many whale species. overkill endangerment Minke whale = most hunted species http://news.bbc.co.uk/2/shared/spl/hi/guides/456900/456973/html/nn1page1.stm http://en.wikipedia.org/wiki/Whaling#Conservation_status

  17. Today many major whales species are endangered

  18. EXAMPLE: North American Buffalo ______________ in America once numbered 30 - 60 million, ranging from Virginia to Alaska and all points in between. By 1884, the buffalo was close to extinction due to ______________. Wild buffalo Pile of bison skulls, 1870’s overhunting http://en.wikipedia.org/wiki/American_Bison

  19. HOW DO WE HELP? International Whaling Commission has placed a moratorium on whaling. Only works if nations voluntarily comply http://www.cdnn.info/eco/whaling_250146.jpg

  20. HOW DO WE HELP? Conservation efforts, private ownership, and reintroduction of buffalo have allowed the population to recover slightly. Today, the total buffalo population in North America is estimated at 90,000 and about 85 percent of these animals are privately owned. http://en.wikipedia.org/wiki/American_Bison

  21. WHAT PROBLEMS CAN THIS CAUSE? Many endangered animals today are threatened by ____________________ Illegal poaching http://www.aeffonline.org/images/poachersandelephant.jpg http://cnnstudentnews.cnn.com/EARTH/9710/02/kenya.ivory.ap/

  22. OVERHUNTING/POACHING All five rhino species are ____________ Black rhino’s are extinct in the wild. Just a few decades ago, the world’s rhino population exceeded 100,000, but today there are less than 11,000 due to _____________ and _________________. _______________ are in demand in many countries where they can bring over $60,000/lb. It is ground into medicine in China and carved into ceremonial dagger handles in Yemen. endangered. habitat loss poaching Rhino horns http://nationalzoo.si.edu/Publications/ZooGoer/2003/6/Sidebar_Forensics.cfm

  23. WHAT CAN WE DO TO HELP? The_________________________________________________________ (CITES) bans international ________ in products from endangered species. Convention on International Trade in Endangered Species trade http://www.mtholyoke.edu/~sjberg/CITES.htm

  24. WHAT CAN WE DO TO HELP? Support “Green” organizations that work for laws to establish quotas and protect species. http://www.nwf.org/ http://www.maksimum.com/haberler/h/greenpeacee_cevre_cezasi.php http://www.sierraclub.org/ http://www.brookingshumane.org/ http://www.sierraclub.org/ http://www.ducks.org/states/62/index.html

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