Supporters of green freeport for north-east have urged Nicola Sturgeon to back her pledge to make the region a ‘net zero capital’ of Europe

Nicola Sturgeon has been urged to back a bid for a green freeport in the north east of Scotland.

Supporters of a green freeport in region have signed a letter highlighting her “ambition” to make the north-east the “net zero capital of Europe”, which she announced in a visit to Aberdeen in April.

The missive argues that her…