&quot;70 cm is smaller than regular tide heights, smaller than wave heights, it&#x27;s just not very significant for most coastal cities&quot;<p>You understand of course, that now the tides and the waves will be a meter higher. As will storm surges from future storms.<p>You also understand, of course, that part of the alarm is because that the more data that&#x27;s collected and the more mature the models get, the faster and steeper the see level rise projections get (DeConto &amp; Pollard, 3&#x2F;2016, <a href="http:&#x2F;&#x2F;www.nature.com&#x2F;nature&#x2F;journal&#x2F;v531&#x2F;n7596&#x2F;full&#x2F;nature17145.html" rel="nofollow">http:&#x2F;&#x2F;www.nature.com&#x2F;nature&#x2F;journal&#x2F;v531&#x2F;n7596&#x2F;full&#x2F;nature1...</a>).<p>Another part of the alarm is the extent that the 2016 climate data thus far is worse than models predicted.