Many major roads are being affected by snow, with parts of the M4 and M50 closed for a time.

BBC: UK snow: Schools and transport hit by disruption

They had to drive through Ballymun and over the M50 motorway.

NEWYORKER: The Dog

The M50 eastbound at junction two for Ledbury is down to one lane because of flooding and the Eckington and Jubilee bridges have been closed by Worcestershire County Council.

BBC: Nine rescued in Herefordshire and Worcestershire floods

Covering some 400 square miles of open countryside, the trial sites are much larger than the ten-by-ten kilometre box squares used in the RBCT, and have been carefully chosen to take advantage of natural barriers to the movement of badgers like the M5 and M50 motorways and the river severn.

BBC: Badgers back in the firing line