Saturday, 22 February 2025

East Anglia Peatlands revisited

Update1: see clipped oroginal and working vector datasets posted as detailed at bottom.

Update 2: added DIY map-mapping workshops & notes to help citzen science

Update 3here at the end is the relevance of this sort of effort in a broader context

As news abounds about Arctic Permafrost & Peatlands degrading faster than thought (Copilot), this may be a good time to bring back some Natural England and Environment Agency data under Open Government License (OGL, National Archives). The upshot is that returning peatlands to their original state is the biggest climate change mitigator in the UK detailed here & here: briefly, peatlands either degraded thru neglect or converted to farm land, not only shrinks & stops being floodwater catchment, but it converts carbon sinks through sphagnum moss into carbon emitters thru windborne dried peat. In other words, re-watering peatlands dwarf efforts from other mitigation of climate change (see sources at bottom).

Wednesday, 12 February 2025

Beechey Island update

 A previous blogpost here almost 7 years ago showed how to use a niche product to create detailed elevation model of Beechey Island. Posted on Google Earth here (download & open it in Google Earth, see 'GE' below), it allowed to add a Parks Canada photo of the Franklin Expedition landing site: it was the first one uncovered by University of Alberta's Owen Beatty in 1984, the year before I spent a summer in the Arctic 'nearby' the other side of King William Isl. on the west shore mid-Boothia Peninsula... We were in fact told to report any unusual findings!

Wednesday, 5 February 2025

London Thames Barrier update

Update 1: here is the transcript of Hansen's latest "in plain English" (alt. here)

Update 2: here is the Climate Cultures article this map was used in, thanks Lola Perrin.

Update 3: here at the end is the relevance of this sort of effort in a broader context

Two weeks ago I recreated Sea Level Rise (SLR) and Risk of Flooding (RoF) maps for the lower Thames River near the Thames Barrier (blog) for a WhatsApp Group considering the future of its ageing infrastructure w.r.t. recent climate extremes. This week came a global and urgent update affecting Sea Level Rise, by James Hansen who sounded the alarm ~ 35 yrs ago (go to 1981 & 1988 in Medium): a paper incl. supplementary materials "Global Warming Has Accelerated" (Columbia) c/w companion webinar (Columbia).