HeinzWittenbrink 02 Jan 2024 in Public https://www.theguardian.com/world/2023/aug/25/emperor-penguins-thousands-of-chicks-in-antarctica-likely-died-due-to-record-low-sea-ice-levels 2023-08-24 emperor penguin Antarctica Bellingshausen Sea sea ice loss Peter Fretwell British Antarctic Survey Barbara Wienecke Australian Antarctic Division Jeremy Wilkinson, Record low 2022 Antarctic sea ice led to catastrophic breeding failure of emperor penguins