In the near-term, additional climate change is expected regardless of the scale of greenhouse gas mitigation efforts . Across the global scenarios analysed in the AR6, global average temperature changes relative to the reference period 1850-1900 range from 1.2°℃ to 1.9ºC for the period 2021-2040 and 1.2°℃ to 3.0ºC for the period 2041-2060 , very likely range). However, the feasibility of emissions pathways  affect the plausibility of the associated climate projections, potentially lowering the upper end of these ranges because the likelihood of the higher warming levels is a function of the likelihood of the higher emissions scenarios  . There is significant overlap between climate scenario ensemble ranges from different emissions scenarios through 2050, more so than through 2100 . There is also overlap between emissions scenario ensembles consistent with different temperature outcomes  . Emissions pathway ranges represent uncertainties for policymakers and organisations to consider and manage  regarding, among other things, economic growth and structure, available technologies, markets, behavioural dynamics, policies and non-CO2 climate forcings , while climate pathway ranges represent bio-physical climate systems and carbon cycle uncertainties . For all climate projections and variables, there is significant regional heterogeneity and uncertainty in projected climate change (very high
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report