Many time scales have been assessed that shape the context for any such transformations: including the present, 2030 and mid-century . In the present, significant changes in the climate system have already occurred in many places , while commensurate adaptation actions have in general been lacking . By 2030, the SDGs call for significant societal changes, many of which would be more difficult to achieve without significant reductions in climate risk and impacts. By mid-century, global emissions pathways consistent with the Paris Agreement 1.5℃ target drop to zero net GHG emissions with no overshoot and roughly a decade later with overshoot . Pathways consistent with the Paris 2℃ target drop to zero net emissions in the latter half of the 21st century. Even in low emission scenarios, temperatures, storm intensities, sea levels and other climate parameters are expected to continue to change for decades .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report