·
What kind of rises in sea level are
expect around UK coasts?
·
Utilitarianism – why it’s OK for some
to lose if the many will gain
·
Helping ‘crunch’ communities to adapt –
time for government to commit
The Summary
of Key Findings from the recently published UK Climate Change Risk Assessment[1] tells us that “…the UKCP09
projections for different parts of the UK suggest…by 2095 a…rise in sea levels
around London, for instance, of between 20cm and 70cm.” (p6) Less
optimistically, the Thames 2100 plan for consultation[2], concerned with future flood
defences for the tidal Thames suggested that sea level rise in the Thames is likely
to be between 20cm and 90cm” (p23). With a global rather than local focus, a
summary from the Parliamentary Office of Science & Technology (POST)[3] draws on the most recent
IPCC Assessment Report predictions of 18-59 cm in mean sea levels for the
period 1990 to 2095 (p2).
Such variations
reflect uncertainties attributed to a lack of knowledge with regard to future greenhouse
gas (GHG) emissions and, importantly, the rate at which polar ice caps melt -
and they may prove to be conservative. The POST summary notes that the quoted IPCC
projections “excluded possible rapid changes in the net rate of discharge from
ice sheets as there was a lack of scientific understanding of the relevant
processes” and that it is plausible that those in the IPCC’s Fifth Assessment
Report – due in 2013 – will be higher. (p.2) Recent published models, it
suggests, “have predicted much higher sea level rise that suggested in the
Fourth Assessment Report, with change in global mean sea levels in the next
century exceeding 1 metre or more if greenhouse gases continue to escalate.”
(p.3)
This makes
chilling reading for some of us although, interestingly, by no means all living
in low-lying coastal areas. By way of example (and with apologies for my
parochialism), the Thames Estuary 2100 Plan[4], designed to ensure that
London is protected from the sea in the long-term employs the High++ scenario -
a “low probability, high impact projection for sea level rise around the UK,
carried out by the UK Climate Projection Report 2009” that “derives an upper
bound of sea level rise around the UK of 1.9 metres in the next century.” (p.3)
Clearly government will take no chances with the integrity of the capital city (and by extension the prospects of those who live in it). By dint of no more their numbers and being in the right place at the right time (including proximity to capital and cultural assets and economic development muscle in the shape of the City), Londoners will be protected from these particular impacts of climate change for the foreseeable future.
Wrong
place, wrong time
In extreme contrast,
there are settlements, communities and people located on the coast facing very
different and extremely worrying futures. The POST summary stresses that: “It
is estimated that given current costs of building or maintaining coastal
defences, there will be some locations where defences can no longer be
sustained by government funding.” (p4)
Utilitarian
logic – concerned with maximising the well-being of the majority – is
comfortable with the idea that some should lose in this way. O’Brien, and
Leichenko[5], citing Nordhaus explain:
“…it is the net balance of wins and losses across society that matters more
than individual wins and losses…as this is considered the most efficient
strategy that maximises net economic welfare.” By contrast, they suggest that egalitarians
such as Rawls seek recognition that “winners and losers are socially generated”
and that “it is the responsibility of society to address losers”. (p.99) Despite
a little recent playing around the edges of its revamped FCERM funding strategy
to lower the obstacles to the achievement of adequate sea defences for poorer
communities (this is complicated, and I will return in a later post) the UK
government appears stuck in the former camp.
The POST summary
acknowledges that “The threat of loss of property and cultural heritage due to
coastal change and from coastal defences that are determined to be unfeasible
has resulted in friction between government policy and local communities.”
(p.4) From my experiences as a community activist on this issue where I live –
on the outer Thames estuary but out of reach of the security to be afforded
those closer to the capital - I would suggest that ‘friction’ is an
understatement. And from my experience as a member of the National Voice of
Coastal Communities - set up so that
such ‘crunch’ communities might find a collective voice - I would also suggest
that there are plenty more examples to be found.
Beach Road, Happisburgh |
Thank you,
and good night.
Chris
[1] http://www.defra.gov.uk/environment/climate/government/risk-assessment/
[2] http://www.environment-agency.gov.uk/research/library/consultations/106100.aspx
[3] Parliamentary
Office of Science & Technology. 2010. Sea Level Rise. Postnote. September
2010. No.363.Available at www.parliament.uk/briefing-papers/POST-PN-363.pdf
[4] http://www.environment-agency.gov.uk/static/documents/Leisure/TE2100_Chapter01-04.pdf
[5] O’Brien, K.L. and Leichenko, R.M. 2003. Annals of the
Association of American Geographers, 93(1), pp. 89-103.
[6] http://www.nvcc.org.uk/2012/01/edp-demolition-looming-for-happisburgh-homes-threatened-by-coastal-erosion/
[7] http://www.nvcc.org.uk/2012/02/yorkshire-post-council-fears-loss-of-community-support-as-erosion-aid-dries-up/