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(2021). International Panel on Climate Change. Climate Change 2021: The Physical Science Basis, Cambridge University Press. Available online: https:\/\/www.ipcc.ch\/report\/ar6\/wg1\/."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"18","DOI":"10.3189\/2015AoG69A909","article-title":"Comparing and contrasting the behaviour of Arctic and Antarctic sea ice over the 35 year period 1979\u20132013","volume":"56","author":"Simmonds","year":"2015","journal-title":"Ann. Glaciol."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"187","DOI":"10.1146\/annurev-marine-010816-060610","article-title":"Arctic and Antarctic sea ice change: Contrasts, commonalities, and causes","volume":"11","author":"Maksym","year":"2019","journal-title":"Ann. Rev. Mar. 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