Stephen Perlstein (Boardwalk Audio, You Should Love Wrestling) joins The Science Jerks to talk about a wall of trees being built across Africa to hold back the Sahara desert, why computers might soon be try to argue with you and how one giraffe turned into four! Green Wall of Africa! https://www.newscientist.com/article/mg23130902-500-a-wall-of-trees-across-the-sahara-is-cool-but-we-dont-need-it Arguing with Machines! https://www.newscientist.com/article/mg23130900-700-rage-against-the-machine-why-computers-need-to-argue-with-us Giraffe Speciation! http://www.scientificamerican.com/article/dna-reveals-giraffes-are-4-species-not-1 Stephen can be found at: http://twitter.com/perlstein And check out his podcast "You Should Love Wrestling" at: https://twitter.com/YSLWPodcast https://www.facebook.com/YouShouldLoveWrestling https://itunes.apple.com/us/podcast/you-should-love-wrestling/id1099658251 Be sure to check out our new home on the Boardwalk Audio network! http://boardwalkaudio.com/sciencejerks