The FAO have taken a look at the socio-ecological impacts of climate climate change and ocean acidification on a human community in Kenya that utilizes reefs for their livelihoods and survival
Transitioning Away from Peak Oil
The problem is that cheap oil is running out. Here enters the concept of 'peak oil'. This doesn't mean that oil itself has run out (though oil being a finite resource it will eventually run out if we continue to deplete it indefinitely). It means that we have depleted over half of all the oil in the world.