Photograph: jax10289/Alamy
It was a bold, ambitious and controversial idea: close Cardiff and Bristol airports and build an international facility on an artificial island. So aspirational, in fact, that the Severnside plan was roundly rejected as far-fetched when it was unveiled more than 20 years ago.
But now, as a result of the climate crisis and a long-running legal battle between the two airports, the proposal may not seem nearly as bizarre.
