* [http://www.theguardian.com/environment/earth-insight/2013/may/13/1 Peak oil, climate change and pipeline geopolitics driving Syria conflict], Nafeez Ahmed, 13 במאי 2013 | * [http://www.theguardian.com/environment/earth-insight/2013/may/13/1 Peak oil, climate change and pipeline geopolitics driving Syria conflict], Nafeez Ahmed, 13 במאי 2013 |