16. http://nestlines.files.wordpress.com/2009/08/global-warming-arctic-ice-sheets.jpg

17. http://www.theage.com.au/ffximage/2007/09/21/js22w_greenland_wideweb__470x305,0.jpg

18. http://x37.xanga.com/aafa27716243045397233/b23430492.jpg

19. http://isiria.files.wordpress.com/2009/04/antarctic-glaciers.jpg

20. http://static.guim.co.uk/sys-images/Guardian/Pix/pictures/2009/4/28/1240928367438/Glaciers-under-treat-Berg-019.jpg

21. http://www.rand.org/scitech/stpi/ourfuture/NaturesServices/images/nature.jpg

22. http://content.authorstream.com/images/Richie-13014-Nature-slideshare-net-pankaj-nature24427-Travel-Places-ppt-powerpoint-118_88.jpg

23. http://wildnikki09.files.wordpress.com/2009/05/scenery-mountains-03.jpg

24. http://media.photobucket.com/image/mountains/palerider_2008/mountains.jpg

25. http://david-foote.blogspot.com/search?updated-min=2009-01-01T00%3A00%3A00-07%3A00&updated-max=2010-01-01T00%3A00%3A00-07%3A00&max-results=50

26. http://wallse.net/wp/Cuernos_Del_Paine,_Andes_Mountains,_Chile

27. http://images.google.com/imgres?imgurl=http://web.njit.edu/~as423/SunRise.jpg&imgrefurl=http://web.njit.edu/~as423/&usg=__1n5BI1Wzx9CInBavY__RR9HE18c=&h=864&w=1323&sz=123&hl=en&start=2&um=1&tbnid=8bZSNvIYvNLsSM:&tbnh=98&tbnw=150&prev=/images%3Fq%3Dsun%2Brise%26hl%3Den%26safe%3Doff%26rlz%3D1T4ADBF_enUS277US277%26um%3D1

28. http://fineartamerica.com/images-medium/quetico-sun-rise-peter-mcintosh.jpg

29. http://images.google.com/imgres?imgurl=http://unclondon.com/images/plays-main.jpg&imgrefurl=http://unclondon.com/plays.htm&usg=__Z-Ta5l4hu2HXjDrWjFcYOn99vVM=&h=337&w=450&sz=82&hl=en&start=1&um=1&tbnid=y8BV5d0T59Cl5M:&tbnh=95&tbnw=127&prev=/images%3Fq%3Dplays%26hl%3Den%26safe%3Doff%26rlz%3D1T4ADBF_enUS277US277%26um%3D1

30. http://www.bunnylicious.org/public/2007/01/nexus_productions.jpg