By Ben Chu

Policy and analysis correspondendent

The government has approved drilling at the Jackdaw gas field in the North Sea.

The decision - which comes after years of debate and legal challenges - will pave the way for gas to be extracted from it and used in Britain's gas network within weeks.

BBC Verify has looked at what this means for energy bills, energy security and the environment.

Where is Jackdaw and how much gas is there?

Jackdaw is a gas field 150 miles (241.4km) east of Aberdeen. It is owned by Adura Energy, which is itself equally owned by the energy companies Shell and Equinor.

The owners of the site, which was first approved four years ago but subject to legal delays until now, estimate Jackdaw has around 10 million cubic metres of recoverable gas.…