That's one of the biggest questions lingering after the Paris climate agreement succeeded in mobilizing 195 nations around reducing their emissions to prevent a warmer world.

According to a global index managed by the University of Notre Dame in Indiana, the five countries most vulnerable and least prepared to deal with climate change are Eritrea, Chad, Central African Republic, Sudan, and the Democratic Republic of the Congo.

Using 25 years of data, Notre Dame’s global adaptation index ranks 192 countries annually on their preparedness for risks exacerbated by climate change, such as overcrowding, food insecurity, inadequate infrastructure, and civil conflicts

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