[Angrist]

It's a huge problem. Farmers have to expoit the soil to get enough food, but because of that the ground turns into desert. The population growth has a lot to do with it. Man I love university.

BTW:

http://www.unccd.int/
http://www.ciesin.org/TG/LU/degrad.html
http://www.fao.org/desertification
http://www.wcmc.org.uk/dynamic/desert/
http://www.fao.org/desertification/intro.asp?lang=en
http://64.15.227.217/Search?fig=314...ubsite-df1-2-20
http://www.unccd.int/main.php
http://www.acdi-cida.gc.ca/xpress/dex/dex9407.htm
http://www.undp.org/seed/unso/
http://www.unccd.de/
http://www.didyouknow.cd/deserts.htm
http://www.unccd.ch/
http://www.ciesin.org/TG/LU/process.html
http://www.fao.org/desertification/default.asp?lang=en
http://multimedia2.freac.fsu.edu/fg...emy/afdefor.htm
http://www.desertification.it/
http://grads.iges.org/res/proj10/proj10.html
http://www.gps.caltech.edu/~arid/
http://www.fao.org/waicent/faoinfo/...ct/EPan0005.htm
http://www.unccd.int/convention/menu.php
http://www.acts.or.ke/
http://www.medalus.demon.co.uk/
http://www.iisd.ca/linkages/desert.html
http://www.geology.sdsu.edu/facilit...arre_study.html
http://www.ciesin.org/docs/002-193/002-193.html
http://members.tripod.com/~sepado/
http://www.csf-desertification.org/
http://www.ciesin.org/docs/002-479/002-479.html
http://nt1.ids.ac.uk/eldis/deser/deser.htm
http://www.rala.is/desert/
http://ag.arizona.edu/OALS/ALN/aln40/WebResources.html
http://www.wcmc.org.uk/~dynamic/desert/
http://lnweb18.worldbank.org/essd/e...8d?OpenDocument
http://pubs.usgs.gov/gip/deserts/desertification/
http://www.greenpeace.org/~climate/...tification.html
http://www.idrc.ca/books/focus/794/794.html
http://sedac.ciesin.org/pidb/texts/...ution.1994.html
http://ag.arizona.edu/OALS/IALC/links/desert.html
http://www.fao.org/waicent/
http://www-wmc.wr.usgs.gov/home-esi...it/erosion.html
http://www.solutions-site.org/reference/glossary.htm
http://www.uni-hohenheim.de/~graef/
http://www.nssd.net/references/Conventions/ccdeng.htm
http://www.rodcuff.demon.co.uk/sunseed/
http://ag.arizona.edu/OALS/ALN/ALNHome.html
http://cwisdb.cc.kuleuven.ac.be/ond...ect3E970331.htm
http://www.minlnv.nl/infomart/lba/1999/30/lba13.htm
http://cwisdb.cc.kuleuven.ac.be/ond...ect3E010746.htm
http://www.ulb.ac.be/ceese/meta/cdsnl.html
http://www.earlywarning.nl/earlywarning/vacature.htm
http://www.emis.vito.be/wet/teksten...12/sb101297.htm
http://cwisdb.cc.kuleuven.ac.be/ond...domein/P460.htm
http://www.sib.studver.uu.nl/vn-activiteiten.htm
http://cwisdb.cc.kuleuven.ac.be/ond...groep221910.htm
http://www.uba.uva.nl/nl/collecties...imte/water.html
http://www.let.kun.nl/~j.hoogland/S...iding/Water.htm
http://www.owio.wau.nl/gallery/show_record.asp
http://cwisdb.cc.kuleuven.ac.be/ond...domein/P510.htm
http://www.ulb.ac.be/ceese/TEST2/demo.html
http://www.lib.kth.se/~lg/desert.htm
http://www.minlnv.nl/infomart/lba/1999/30/lba99-30.pdf
http://www.library.uu.nl/bcu/new/di...ge-keywords.htm
http://www.farmersatwork.be/topic_derdew_bio.php
http://www.belspo.be/issd/new_proje...alChange_nl.htm
http://cwisdb.cc.kuleuven.ac.be/ond...groep221910.htm
http://www.unbenelux.org/int.htm
http://cwisdb.cc.kuleuven.ac.be/ond...domein/B410.htm
http://www.devcoprize.africamuseum....reate/00s11.htm
http://www.aardrijkskundelinks.nl/remote%20sensing.htm
http://www.diplobel.org/Cooperation...NL/Section3.htm
http://www.aardrijkskundelinks.nl/remote sensing.htm
http://www.baudartius.nl/vakken/aar...rijkskunde5.htm
http://www.milieutotaal.nl/html/begrip.htm
http://snowball.sourceforge.net/dutch/diffs.txt
http://www.dgic.be/nl/txt/secret/beleid/3/38.html
http://minf.vub.ac.be/~gronsse/meko/inhwk.html
http://www.belspo.be/frdocfdd/nl/pu...en/nrdo_a02.htm
http://cf.uba.uva.nl/nl/collecties/...imte/water.html
http://www.devcoprize.africamuseum....ureate/00s9.htm
http://www.belchin.be/artikel.aspx?ArtID=6