One of the main r_____s b____d that is, One of the main reasons behind that is, Look for s____ns, Look for solutions, To t_____e this problem, To tackle this problem, What is needed to c____t this problem is, What is needed to combat this problem is, If cities fail to t____ these necessary actions, If cities fail to take these necessary actions, R_____e conflicts, Resolve conflicts, All things c____d, All things considered, Take a____, Take action, To r____e this trend, To reverse this trend, E_____er setbacks, Encounter setbacks, Pr____al problem, Principal problem, If they im_____t these solutions, If they implement these solutions.

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