Researchers at Durham University have published a major report looking into the dangers of fracking.
They say the process, which involves fracturing rocks to release shale gas, is relatively safe.
But they warn that drilling boreholes, whether for fracking or for any other reason, is potentially dangerous.
More top news
Emma Jesson brings you Saturday night's forecast
Feeling much colder later on Saturday. Wintry showers possible on Sunday and Monday
The pressure group Ashley Out has called for demonstrations outside every Sports Direct store within a 20-mile radius of St James' Park.