Perspective on the Era of Global Boiling: A Future beyond Global Warming

Table 1

Definition of shared socioeconomic pathways (SSPs).

SSPs	Definition
SSP1–2.6	Global CO2 emissions are being drastically decreased but at a slower rate. After the year 2050, the goal of zero emissions is reached. According to this scenario, the temperature rise will stabilize at roughly 1.8°C by the end of the century
SSP2–4.5	CO2 emissions will remain at current levels until midcentury, when they will begin to fall. Socioeconomic elements continue to follow their historical patterns with no noticeable change. Slow progress towards sustainability is being made, with disparities in development and income growth. Temperatures will climb by 2.7°C by the end of the century under this scenario
SSP3–7.0	Greenhouse gas emissions and temperatures continue to rise, with CO2 emissions nearly tripling from current levels by the year 2100. Countries grow more competitive with one another, stressing national and food security issues. Temperatures had risen by 3.6°C at the end of the century
SSP5–8.5	This is the “worst-case scenario”. CO2 emissions are expected to nearly treble by the year 2050. The global economy is expanding rapidly, but this expansion is being powered by the extraction of fossil fuels and the adoption of energy-intensive lifestyles. By the year 2100, the average global temperature will have risen by a disastrous 4.4°C