• Weatherwatch: no signposts in the sea – but clear tracks overhead

    Ship condensation trails are wider and fainter than those left by aircraft, but are visible in satellite imagesOn a clear winter’s day, the sky is full of condensation trails from aircraft. More surprisingly, ships also leave faint trails in the sky, an effect not studied until the 1980s. Like aircraft contrails, ship tracks are formed when water in the atmosphere condenses around tiny particles. A study in the 1990s set out to discover whether the ships’ exhaust was responsible, or
  • Labour criticises Boxing Day rail shutdown despite Tory promises

    Andy McDonald, shadow transport secretary, criticises Conservatives after analysis finds only three out of 29 rail franchises will be running servicesLabour has criticised the government’s failure to improve rail services on Boxing Day, despite promises to transform the service when the Conservatives were in opposition.
    An analysis of rail franchises shows that this year, only three out of 29 will be running any form of services, and those that are operating will be severely limited. It me

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