London: Climate change is forcing England to re-assess its flood defences in the face of unprecedented river level surges, one of the United Kingdom government's most senior environment officials says. "We are moving from a period of known extremes into a period of unknown extremes," said David Rooke, deputy chief executive of the UK government's Environment Agency, which manages the country's rivers. "We will need to re-assess all the defences right across the country." He linked the devastating Boxing Day floods, still engulfing swathes of the country, to climate change. "What we are seeing are record river levels," he told BBC Radio....
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