Climate change impacts are, however, coming to us all — developing and developed countries alike. For instance, Hurricane Maria’s devastation in the Caribbean and extreme heatwaves in Europe exemplify how no region is immune. The chapter discusses how even developed nations face significant challenges, such as wildfires in Australia and California, and flooding in Germany. Comprehensive policy responses are essential to address these widespread impacts. Insights from experts such as Ken Ofori-Atta, Ghana’s Minister for Finance, highlight the extensive effects of climate change, including infrastructure damage, economic costs, health effects, and migration. The chapter calls for a unified global effort to mitigate climate risks, improve infrastructure resilience, and implement robust economic and health strategies to protect all populations from the escalating consequences of climate change.

Building and maintaining a global federal government won’t be easy: plenty of things could go awry along the way, and plenty more could go sour even after the government was up and running. The world’s peoples may respond to severe climate change by retrenching into regional or national enclaves. The global legislature could become gridlocked in a manner similar to the UN during the Cold War. One nation or group of nations could succeed in gaining unilateral control over the global government, resulting either in an Orwellian superstate or in a catastrophic planetary civil war. These scenarios form a perfectly real and plausible possibility for our collective future – and the coming generations will need to be ever-vigilant in their efforts to prevent them from happening.