Unprecedented warm conditions are projected to occur in both summer and winter seasons. Both extreme wet years and extreme dry years are likely to become more frequent. Preparing for the impacts of this increase weather variability is critically important.

Rapid growth in population and infrastructure leave Porto Alegre vulnerable to an increase in precipitation and rising temperatures projected for the coming century. As a member of the 100 Resilient Cities, Porto Alegre has taken great strides to identify and plan for those in high risk areas.