Flood simple: the UK flooding crisis explained | Rainfall which in many areas has been twice the average for January and February has left large parts of southern England under water. What causes the unusual weather, why is the country so ill-prepared, and what will be the political effect of 2014’s watery winter?
Scientists have seen evidence for a colossal flood under Antarctica that drained six billion tonnes of water, quite possibly straight to the ocean. The cause is thought to be a deeply buried lake that suddenly over-topped. Satellites were used to map the crater that developed as the 2.7km-thick overlying ice sheet slumped to fill the void left by the escaping water.The peak discharge would have been more than double the normal flow rate of London's River Thames, researchers say.