It's 2080. Global emissions peaked decades ago, too late to keep temperatures from rising more than 2 °C above preindustrial levels. The shift in climate has changed the world. As temperatures climbed by 2 °C, effects were felt first in poor and vulnerable regions like sub-Saharan Africa and south Asia. Extreme weather events - droughts, floods and hurricanes - became more common and severe. Vulnerable nations had a stark choice: adapt or face millions of deaths. At huge financial cost, society has adapted.