Tag: Arctic

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Thawing permafrost produces more methane than expected

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Methane (CH4) is a potent greenhouse gas, which is roughly 30 times more harmful to the climate than carbon dioxide (CO2). Both gases are produced in …

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Spring is springing earlier in polar regions than across the rest of Earth

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Spring is arriving earlier, but how much earlier? The answer depends on where on Earth you find yourself, according to a study led by the University …

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Sea floor uplift after last ice age causes methane release in the Arctic today

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Hundreds of methane flares observed offshore Western Svalbard in the Arctic are caused by a process that started at the end of the last ice age, …

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Polar bears finding it harder to catch enough seals to meet energy demands

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A new study finds polar bears in the wild have higher metabolic rates than previously thought, and as climate change alters their environment a growing number …

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Ponds in High Arctic could be significant source of carbon emissions

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A new Canadian study has found that carbon released by some ponds in the High Arctic could potentially be a hidden source of greenhouse gas emissions. …

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Reconstructing an ancient lethal weapon

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Archaeologists are a little like forensic investigators: They scour the remains of past societies, looking for clues in pottery, tools and bones about how people lived, …

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Warming Arctic climate constrains life in cold-adapted mammals

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Despite the growth in knowledge about the effects of a warming Arctic on its cold-adapted species, how these changes affect animal populations is poorly understood. Research …