Britain's most artificial landscape may not survive climate change
Stretching across much of eastern England, the Fens produce a third of the country's vegetables and support tens of thousands of jobs. Yet around 33% of the region lies below average sea level, while 87% is below the highest spring tides.
The Fens, a landscape of engineered wetlands in eastern England, face a complex web of climate threats that could undermine the very existence of this artificial ecosystem. Stretching across much of the region, the Fens rely on an intricate network of pumps, embankments and drainage channels to keep water moving, despite 33% of it lying below average sea level and 87% below the highest spring tides.
Climate change will exacerbate multiple challenges, including rising sea levels, heavier rainfall, hotter summers, longer droughts and biodiversity loss. A recent analysis reveals that these hazards increasingly overlap as temperatures rise. By 2100, under a 4°C warming scenario, annual flood damages could surge from £16 million to £250 million, and ecosystems could collapse, rendering parts of the Fens uninhabitable without substantial infrastructure investment.
Sea-level rise will continue even if global temperatures stabilize, posing an existential risk for the low-lying Fens. This requires long-term adaptations, as major changes to infrastructure and land management take decades to plan and implement. Integrated assessments of climate-related risks, rather than addressing each hazard separately, are crucial.
The Fens serves as a prime example of how interconnected challenges in coastal lowlands worldwide must be tackled holistically, involving flood protection, water management, agriculture, and environmental considerations.
Written by urgent.news from Phys.org's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
