Rising greenhouse gas emissions (GHGs) are causing climate change and driving a complex mix of unpredictable changes to the environment while further taxing the resilience of natural and built systems. Achieving the right combination of adaptation and mitigation policies will be difficult for most governments.
The complexity and uncertainty associated with climate change often paralyzes government action at the national and international levels. However, combating climate change will require unprecedented levels of multilateral cooperation to prevent the worst effects of rising CO2 levels in the next century. This will also require immediate efforts to 'climate-proof' communities for the effects of climate change that are already locked-in.