Scientists Say Rise In Sea Levels Is Faster Than Feared

By Tim Radford

Sea level rise for most of the 20th century may have been over-estimated by as much as 30%. But the less welcome news is that, if that’s the case, then sea levels since 1990 have started to accelerate more sharply than anyone had ever expected.

Scientists at Harvard University, in the US, report in the journal Nature that they came to the conclusions after deciding that old data needed fresh analysis—using sophisticated mathematical filtering techniques for handling the uncertainties and gaps in such data.


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