MESOGRAFIA

http://www.buenastareas.com/ensayos/Conclusiones-Sobre-Calentamiento-Global/10561.html
http://www.cambioclimaticoglobal.com/conclusi.html
http://www.youtube.com/view_play_list?p=6DEF06F3BA8BD086
http://www.cambioclimaticoglobal.com/introduc.html
http://www.formarse.com.ar/ecologia/el%20calentamiento%20global.htm
http://redgris.blogdiario.com/i2007-08/
http://www.biocab.org/CG_Conclusion.html