The energy policy at the moment is being run by complete dimwits.
You need to sunset that industry in the best interests of both the country (energy security) and long term objectives such as combating global warming.
Instead they are just unilaterally pulling the plug, which may score a few cheap political points now, but in 20 years time will screw the country over completely.
Of course the people responsible for it will be out of power by then, and quite possibly dead. So it will be someone else that has to face up to the consequences of energy shortages.
North sea oil is not an industry that turns on a sixpence. You can't simply click your fingers and magic up more oil just because a global shortage has started.
Democracy in this country is failing on energy policy because it needs to be set on a time horizon longer than the next election.