Climate+Change

http://www.worldbookonline.com/student/article?id=ar226310&st=climate+change

http://wwf.panda.org/about_our_earth/blue_planet/problems/problems_fishing/destructive_fishing/

http://www.telegraph.co.uk/earth/earthnews/7223827/Pollution-creating-acid-oceans.html

http://www.npr.org/templates/story/story.php?storyId=111807469

http://www.bbc.co.uk/news/science-environment-13605113