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When only higher-confidence net-zero targets are included on top of current policies (case B), global warming is projected to increase to 2.4°C by 2100 (range due to emissions projection uncertainties: 1.7° to 3.0°C) - missing global climate goals by a long way. INSIGHTS Clobal climate policy is undergoing a rite of passage. Global warming projections mirror this uncertainty, with best-estimate emissions leading to a median temperature projection for the year 2100 of 2.6°C, with a range of 1.7° to 3.0°C, depending on how policies are assumed to continue after 2030 (see the figure) (table S6). [Extracted from the article]

However, although historically their emissions have been great, most of the developed economies decoupled their carbon emissions and economic growth with the decarbonizing industry, and peaked their emissions by the first decade of this century [[2]]. Although theoretically these countries emit much less CO SB 2 sb , they appear to be more sensitive and susceptible to climate change, and it is very difficult for academics to conduct thorough studies in order to understand their emission baselines and track their climate change mitigation efforts. Therefore, their work advocates international assistance for these emerging emitters and reveals the important role of historically major emitters in addressing global climate change, not only to provide technical and financial assistance to reduce emissions, but also to prioritize their own emission reduction agenda. [Extracted from the article]