Work to remove old coal tips or make them safe could be “devastating” for some of Wales’ rarest species of wildlife, it has been claimed.
The safety of coal tips is under review after a major landslide in 2020.
But ecology experts have said they feel left out of discussions even though these sites were home to rare and previously unknown species.
The Welsh government said it was considering “interconnections between tip safety and environmental law”.
There are almost 2,500 disused coal tips, mounds of waste material from the country’s mining past, across Wales.