Shared Socioeconomic Pathways (SSPs) are a set of scenarios that were developed to explore different possible futures of human society and their potential impacts on the Earth's environment and climate. They are used in conjunction with Representative Concentration Pathways (RCPs) to model how the Earth's climate may respond to different future socioeconomic conditions.
There are five SSPs, SSP1, SSP2, SSP3, SSP4, and SSP5, which represent different possible future socioeconomic conditions.
· SSP1 represents a future where there is sustainable development, low inequality, and a focus on environmental protection.
· SSP2 represents a middle-of-the-road future, where there is moderate economic growth and technological development, and no major environmental policy changes.
· SSP3 represents a future with high levels of inequality and low economic growth, resulting in high levels of poverty and environmental degradation.
· SSP4 represents a future where there is rapid economic growth and technological development, but with little focus on environmental protection.
· SSP5 represents a future where there is rapid economic growth and technological development, with a strong focus on environmental protection and sustainability.
The SSPs are useful for exploring different socioeconomic pathways and their potential impacts on the Earth's environment and climate, and they provide a framework for comparing and contrasting different policy choices and their consequences. By combining the SSPs with the RCPs, researchers can generate a wide range of possible future scenarios and explore the potential impacts of different policy choices on the Earth's climate and environment.