The worst-case scenario for warming-driven sea level rise is 6 feet by 2100, a new study asserts. But this study is already out of date because it is based on expert opinion from back in 2012. Climate risks today are so high that it appears “no cost of mitigation is too high to justify.”
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Bottom line: Antarctic sea ice trends are an intriguing scientific puzzle worthy of academic interest, whereas Antarctic land ice trends are like the planet running around with its hair on fire, yelling "stop the madness of denial and delay."
A new study shows that while three Antarctic penguin species may have actually grown during the end of the last Ice Age around 11,000 years ago, the rapid warming now is negatively affecting at least two of them.
Two new studies find that glaciers in the West Antarctic Ice Sheet (WAIS) have begun the process of irreversible collapse, which could lead to WAIS's collapse in a few centuries. That would mean 10 to 13 feet of sea level rise, PLUS whatever Greenland and the rest of Antarctica causes.
Antarctica's Pine Island Glacier accounts for about one-fourth of the total ice melt from the West Antarctic Ice Sheet. If the entire ice sheet retreated it could cause sea level to rise by more than 10 feet.
By 2100, ocean acidification is predicted to increase by 170 percent if current rates of greenhouse gas emissions continue. More acidic water will make the oceans unlivable for about 30 percent of ocean species.