Volcanic eruptions influence the health of penguin colonies in Antarctica

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A study published in the journal Nature Communications seeks to answer that question using an unintentional chronicle of one colony’s history—specifically, penguin droppings in Antarctic lake sediments. Like other animals, penguins excrete certain elements (copper, zinc, strontium, selenium) in proportions much higher than what is found in the surrounding environment. As a result, their guano, …

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Antarctica’s past shows region’s vulnerability to climate change

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Fresh understanding of West Antarctica has revealed how the region’s ice sheet could become unstable in a warming world. Scientists studying the region’s landscape have determined how it reacted to a period of warming after the coldest point of the most recent Ice Age, some 21,000 years ago. The study, carried out in collaboration with …

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