Climate change over the next 20 years could result in a global catastrophe costing millions of lives in wars and natural disasters.. A secret report, suppressed by US defence chiefs and obtained by The Observer, warns that major European cities will be sunk beneath rising seas as Britain is plunged into a ‘Siberian’ climate. The document predicts that abrupt climate change could bring the planet to the edge of anarchy as countries develop a nuclear threat to defend and secure dwindling food, water and energy supplies. The threat to global stability vastly eclipses that of terrorism, say the few experts privy to its contents. Climate change ‘should be elevated beyond a scientific debate to a US national security concern’, say the authors, Peter Schwartz, CIA consultant and former head of planning at Royal Dutch/Shell Group, and Doug Randall of the California-based Global Business Network. An imminent scenario of catastrophic climate change is ‘plausible and would challenge United States national security in ways that should be considered immediately’, they conclude. As early as next year widespread flooding by a rise in sea levels will create major upheaval for millions. Senior climatologists, however, believe that their verdicts could prove the catalyst in forcing Bush to accept climate change as a real and happening phenomenon. They also hope it will convince the United States to sign up to global treaties to reduce the rate of climatic change. Bob Watson, chief scientist for the World Bank and former chair of the Intergovernmental Panel on Climate Change, added that the Pentagon’s dire warnings could no longer be ignored. Symons, who left the EPA in protest at political interference, said that the suppression of the report was a further instance of the White House trying to bury evidence of climate change. ‘It is yet another example of why this government should stop burying its head in the sand on this issue.’ ‘This administration is ignoring the evidence in order to placate a handful of large energy and oil companies,’ he added.