A fixed link has been proposed, but personally I don't think that's realistic. I think the only realistic solution in terms of food security is to increase production on the Island, as you suggested.

Retailers don’t have any control over the weather, but a backlog in goods shipped to the island has left many wondering what improvements can be made to existing services.

The article doesn't mention any, but what ideas are usually suggested? Is this a matter of building up more production on the island?

Now that the conservatives are in I'm going to bet on it breaking us