Penguins are seen on an iceberg as scientists investigate the impact of climate change on Antarctica's penguin colonies, on the northern side of the Antarctic peninsula, Antarctica January 15, 2022. There's no quick fix to replacing this ice," said Caroline Holmes, polar climate scientist at British Antarctic Survey and one of the study's co-authors. The precise impact of climate change on Antarctica and the surrounding ocean has been uncertain and scientists have struggled to measure how much global warming is affecting the thickness of Antarctic ice. "Antarctica is fragile as an environment, but extreme events test that fragility," he said. "What we're deeply concerned about is the increase in intensity and frequency of extreme events and the cascading influences that they have in other areas."

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Persons: Natalie Thomas, Caroline Holmes, Tim Naish, " Naish, Martin Siegert, Siegert, David Stanway, Edmund Klamann Organizations: Penguins, REUTERS, Environmental, Antarctic Survey, Antarctic Research, Australia's Victoria University of Wellington, Global, University of Exeter, Thomson Locations: Antarctica, SINGAPORE, New Zealand, Australia