Flooding of Brisbane- Controversial Chart

How did this issue start?	How should it be resolved?
The flooding of Brisbane, Australia was inevitable according to the extreme weather conditions and the La Nina storm; but was worsened when Mayor Campbell Newman initiated the opening of the Wivenhoe Dam. The combination of the Wivenhoe Dam and La Nina overflowed Brisbane   The Wivenhoe Dam was not released regularly enough & by November 2011 it was necessary	A new municipal government should be installed Pollution should be controlled to avoid extreme & unpredictable weather conditions The Wivenhoe Dam should be monitored and release more frequently to avoid the necessity for mass flooding