environment

A troubling picture

A just-published report  (enhanced pdf) containing new measurements of global sea-level rise has some troubling news – the rate of sea level increase has accelerated over the past twenty years. What I would argue is the most troubling is the increased precision with which these measurements are made owing to new satellite techniques.

It’s like knowing to the millimetre how long the knife at your throat is.

The figure below is figure 2 from the paper and shows the measured change since 1900. Note that these are from a combination of satellite methods and tide gauge measurements. Note also, the decreasing uncertainty.

Let me put a finer point on it. Note the increasing certainty.

2

(h/t iflscience)

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