{WGIII SPM B.6.3, WGIII 3.5.2, 
WGIII SPM B.6, WGIII SPM B.6., WGIII SPM C.1, WGIII SPM C1.1, 
WGIII Table SPM.2} (Cross-Section Box.2)
Deep, rapid, and sustained mitigation and accelerated implementation of adaptation reduces the risks of climate 
change for humans and ecosystems. In modelled pathways that limit warming to 1.5°C (>50%) with no or limited 
overshoot and in those that limit warming to 2°C (>67%) and assume immediate action, global GHG emissions 
are projected to peak in the early 2020s followed by rapid and deep reductions. As adaptation options often have 
long implementation times, accelerated implementation of adaptation, particularly in this decade, is important 
to close adaptation gaps. (high conﬁdence)