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Last week, a much discussed new paper in the journal Nature seemed to suggest to some that we needn’t worry too much about the melting of Greenland, the mile-thick mass of ice at the top of the globe. The research found that the Greenland ice sheet seems to have survived a previous warm period in Earth’s history—the Eemian period, some 126,000 years ago—without vanishing (although it did melt considerably).
But Ohio State glaciologist Jason Box isn’t buying it.
At Monday’s Climate Desk Live briefing in Washington, D.C., Box, who has visited Greenland 23 times to track its changing climate, explained that we’ve already pushed atmospheric carbon dioxide 40 percent beyond Eemian levels. What’s more, levels of atmospheric methane are a dramatic 240 percent higher—both with no signs of stopping. “There is no analogue for that in the ice record,” said Box.