Antarctic CO2 Hit 400 PPM For First Time in 4 Million Years|Videos

In the remote reaches of Antarctica, the South Pole Observatory carbon dioxide observing station cleared 400 ppm ending the first half of year, according to an announcement from the National Oceanic and Atmospheric Administration recently. That’s the first time it’s passed that level in 4 million years (no, that’s not a typo).

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Carbon dioxide has an unexpected effect in Antarctica

At the bottom of the world, carbon dioxide is doing something surprising. Rising levels of this gas normally cause warming. But over central Antarctica, they produce a cooling. That’s the finding of a new study.

Natural geothermal heat under Antarctic ice: ‘Surprisingly HIGH’

The West Antarctic sheet is the part of the Antarctic ice cap thought to be easiest to melt. Worries over global warming and sea-level rise lead to it being investigated much more than other parts of the frozen austral continent. Some parts of it, for instance the Pine Island Glacier, have appeared at times to be melting faster and faster, though it is not clear that this is due to global warming.