The SSPs (Shared Socio-economic pathways) are based on five narratives describing broad socioeconomic trends that could shape future society. These are intended to span the range of plausible futures.
They include: a world of sustainability-focused growth and equality (SSP1); a “middle of the road” world where trends broadly follow their historical patterns (SSP2); a fragmented world of “resurgent nationalism” (SSP3); a world of ever-increasing inequality (SSP4); and a world of rapid and unconstrained growth in economic output and energy use (SSP5).
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https://www.carbonbrief.org/explaine...climate-change
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