Hungry polar bears at night could be one of the fiercest dangers that Portsmouth-born explorer Alex Hibbert faces when he tackles one of the last great Arctic challenges.
Moving fractured sea ice, unpredictable weather conditions and temperatures as low as -50C could also throw up problems as he makes an unsupported attempt to reach the North Pole in the depths of Winter.
He sets off today.
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Monday's weather forecast for the east of the region
Monday's weather forecast for the west of the region
Monday's weather for the east of the region