Compare the eco-indicator values of materials with their embodied energy. To do so, make a chart with (Embodied energy  Density) on the x-axis and Eco-indicator value on the y-axis. (Ignore the data...

Compare the eco-indicator values of materials with their embodied energy. To do so, make a chart with (Embodied energy
 Density) on the x-axis and Eco-indicator value on the y-axis. (Ignore the data for foams since these have an artificially inflated volume.) Is there a correlation between the two? Is it linear? Given that the precision of both could be in error by 10% are they significantly different measures? Does this give a way of estimating, approximately, eco-indicator values where none is available?