http://opensourcegeography.org Thu, 17 Sep 2009 06:18:01 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 http://opensourcegeography.org/2009/05/26/the-geography-of-the-seasons/ http://opensourcegeography.org/2009/05/26/the-geography-of-the-seasons/#comments Tue, 26 May 2009 21:19:33 +0000 Kevin http://opensourcegeography.org/?p=139 This short video describes the mechanisms for the Earth’s seasons:

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