Sean CoughlanRoyal correspondentBBCMr Rootes told the BBC it was currently warmer than usual in Antarctica, at -2C, but that it can be tough to cope without any daylight, which makes it even more important to have a community celebration for Midwinter."At this time of year when the darkness has really closed in, it's very easy psychologically for people to withdraw into themselves," he said. "It's a really vital part of our mental health provision that people have something like this, which people really look forward to."The traditions for Midwinter...