As Eric Holthaus noted in Slate, it's a very small decrease in gravity, far from enough to send any penguins, sea lions, or research scientists floating into space. But the finding is especially troubling combined with the news Popular Science reported back in May, that the collapse of some West Antarctic glaciers due to rising global temperatures is now very likely unstoppable. "The biggest implication is the new measurements confirm global warming is changing the Antarctic in fundamental ways," Holthaus writes.