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Sea level rise could cost EU and UK nearly £750 billion by 2100, study finds

Sea level rise could cost the EU and UK up to 872 billion euro (£748.9 billion) by the end of the century, with coastal economies likely to suffer most, a study has found (PA)
Sea level rise could cost the EU and UK up to 872 billion euro (£748.9 billion) by the end of the century, with coastal economies likely to suffer most, a study has found (PA)

Sea level rise could cost the EU and UK up to 872 billion euro (£748.9 billion) by the end of the century, with coastal economies likely to suffer most, a study has found.

Low-lying regions such as Veneto and Emilia-Romagna in Italy and Zachodniopomorskie in Poland could face a devastating 21% loss in GDP.

Other areas projected to see heavy economic losses were around the Baltic Sea, the Belgian coast, western France and Greece.

The UK regions that would suffer most are east Yorkshire and north Lincolnshire because of damage to transport infrastructure, the analysts found.

Modelled by economists from Delft University of Technology, the researchers said they wanted to help quantify the effects of sea level rise.

They used what is considered to be the worst-case scenario, where countries continue emitting greenhouse gases at a high rate in the coming decades, leading the Earth’s climate to warm by around 5C above pre-industrial levels by 2100 and creating about 1.5m of sea level rise.

Scientists consider this scenario to be unlikely given that many nations have set net-zero targets and are beginning to switch to renewable energy.

Current estimates put the Earth on track for around 3C of extra warming, which would still be catastrophic.

The study authors said they did not take into account the potential effect of tipping points, where Arctic sea ice or the Greenland ice sheets start melting uncontrollably.

They also accounted only for sea level rise and not any other climate hazards that could overlap and cause extra economic damage.

Professor Tatiana Filatova, one of the study authors, said: “Understanding which sectors and regions are hit most helps to design tailored private and public adaptation strategies.

“If we proactively prioritise investments in both economic development of certain industries in specific regions, as well as in local adaptation, it will really help us building climate resilient economies.

Venice
Venice’s economy faces the prospect of devastation from sea level rise (Luca Bruno/AP)

“It also allows exploring regional economic trade-offs of different adaptation policies, including, for example, understanding whether partial or universal retreat makes sense and how to deal with disinvestment of certain industries from certain locations.”

The authors stressed that their model, which looked at 271 European regions, shows how each area will be affected to a different degree and will require need solutions.

While the overall effect is negligible – a 1.26% loss of GDP across Europe – some coastal regions could face having entire industries relocated.

The authors calculated a tiny benefit to inland areas which could see a boost in GDP of 1% from people moving away from the sea, but this was dwarfed by the loss projected in coastal areas.

Professor Chris Hilson, a climate scientists at the University of Reading, said the research misses a climate justice element – that sea level rise could exacerbate existing inequalities as money is spent on defending areas valuable to a nation’s economy but other poorer regions have their population displaced.

He said: “In making cost-benefit analysis-based assessments on where to focus country climate adaptation spending, there is a danger that the money will all be directed at wealthy, high GDP areas.

“But, as academic scholarship on managed retreat has shown, the risk is that poorer communities will be the ones singled out for relocation inland.

“In other words, the already marginalised become further marginalised.”