Unit 12: The living world

green energy    alternative sources of energy    

animal conservation    climate change    global warming 

pollution   protection of endangered species 

greenhouse gases     energy conservation    

effects of pollution on human health       

http://sites.duke.edu/biology217_01_s2011_mkg14/files/2011/04/rtr1kqtc.jpg

http://media.breitbart.com/media/2015/02/polar-bear-640x480.jpg

http://i.dailymail.co.uk/i/pix/2013/01/13/article-2261577-035634B8000005DC-931_634x416.jpg

Source: http://lunar.thegamez.net/greenenergyimage/what-is-alternative-energy-resources/alternative-energy-under30finance-under30finance-1000x667.jpg