Lindsey Inger, 13, from Bulwell, was killed by a tram on the level crossing in November.

BBC: Moor Bridge footbridge project criticised by Sherwood MP

Lindsey Inger, 13, was hit by a tram at Moor Bridge in Hucknall on 28 November.

BBC: Lindsey Inger's crossing death housing safety warning

It comes after Lindsey Inger, 13, was killed at a Nottinghamshire crossing in November and two hefty fines for separate incidents.

BBC: Lindsey Inger

"As with all marine issues you do not see what is down there and sea bottoms are mostly neglected because in general people think there is no life, " said Inger Naslund, from environmental group WWF Sweden.

CNN: Can oxygen pump breathe life into ocean 'dead zone?'