A sudden and sustained termination of SRM in a high CO2 emissions scenario would cause rapid climate change . More scenario analysis is needed on the potential likelihood of sudden termination . A gradual phase-out of SRM combined with emission reduction and CDR could avoid these termination effects  . Several studies find that large and extremely rapid warming and abrupt changes to the water cycle would occur within a decade if a sudden termination of SAI occurred . The size of this 'termination shock' is proportional to the amount of radiative forcing being masked by SAI. A sudden termination of SAI could place many thousands of species at risk of extinction, because the resulting rapid warming would be too fast for species to track the changing climate .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report