11.   The root cause of the current energy crisis is that we simply use too much energy.

12.   The root cause of these crises is not that things are being done poorly.

13.   Vasconcellos has long argued that to combat crime, the state should attack the root causes, such as low self-esteem.

14.   Whether caffeine is the root cause of your insomnia or just a contributing factor, your caffeine consumption needs to be addressed.

15.   While the root cause of the catastrophe remains uncertain, there are some pointers for the investigators.

16.   He targets the economy as the root cause of the deteriorating law and order situation.

17.   Instead, they declared, the root causes were poverty, poor education and poor co-ordination of resources.

18.   The root cause of these conditions lies in the home.