%0 book part %@ %A Collins M., Sutherland, M., Bouwer, L., Cheong, S., Frölicher, T., Jacot Des Combes, H., Koll Roxy, M., Losada, I., McInnes, K., Ratter, B., Rivera-Arriaga, E., Susanto, R., Swingedouw, D., Tibig, L. %D 2022 %J IPCC Special Report on the Ocean and Cryosphere in a Changing Climate %P 589-655 %R doi:10.1017/9781009157964.008 %T Extremes, Abrupt Changes and Managing Risks %U https://doi.org/10.1017/9781009157964.008 %X This chapter assesses extremes and abrupt or irreversible changes in the ocean and cryosphere in a changing climate, to identify regional hot spots, cascading effects, their impacts on human and natural systems, and sustainable and resilient risk management strategies. It is not comprehensive in terms of the systems assessed and some information on extremes, abrupt and irreversible changes, in particular for the cryosphere, may be found in other chapters.