The climate impact of a second runway at Gatwick Airport was not properly assessed when the government approved plans. This is what lawyers  for campaigners challenging, the expansion told the High Court.

The High Court hearing, which began on Tuesday is expected to conclude on Friday.

Gatwick’s plans involve moving its emergency runway 12m (39.3 ft) to the north so that it can be brought into regular use.

The Department for Transport and the airport’s owner, Gatwick Airport Limited are opposing the challenge.

The DfT will make oral legal arguments in due course.