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The skies: the limit?
Today is Pi Day - a celebration of mathematics’ most compelling number.
But even those who have memorised the number to fifty decimal places (or, hey, to 628 places) would have trouble working out how much is enough when it comes to air travel.
Should petrol be cheaper?
Yesterday we wrote about the Budget, in which chancellor Alistair Darling delayed a 2p tax hike on fuel but announced a hefty new tax for the largest, most polluting cars. Higher taxes aren’t great news for the driver, but they’re good for the environment, right?
