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Monday, 26 June 2023

Sea Level Rise update

The last post before peatlands (recent update here) was the East Anglia flood protection infrastructure here - both used extensive Environment Agency data, publicly available if needing some (at time extensive) work as described therein. Here are further DIY resources to create maps like this fun pirate map of East Anglia under 12 m. water est. around 2150AD (from here updated here):

click to enlarge, full size here

And while sea level rise acceleration was in the news almost exactly a year ago here:

Sea levels have risen by around 16.5cm (6.5 ins) since 1900, but the Met Office says the rate of rise is increasing. They are now rising by 3-5.2mm a year, which is more than double the rate of increase in the early part of last century.

They're in the news again today here:

Part of the problem is the that even if the world stopped emitting greenhouse gases immediately – which it will not – sea levels would continue to rise. Even in the best-case scenario, it’s too late to hold back the ocean.

This goes along Jim Hansen's submitted abstract from NASA here:

... Global warming in the pipeline is greater than prior estimates. ... We infer from paleoclimate data that aerosol cooling offset GHG warming for several millennia as civilization developed. ... The enormity of consequences of warming in the pipeline demands a new approach addressing legacy and future emissions...

And last but not least, sea water temperatures are alarmingly high around the British Isles after breaches of the 1.5°C threshold explained here. This tweet: NOAA's Marine Heatwave Watch has categorized this event as a Category 4 (extreme) marine heatwave. pic.twitter.com/mDfhZEu2KY, is expanded by this excellent video (note also YouTube's helpful explainer on Climate Change):

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