Scientists at the University of Southampton's National Oceanography Centre have discovered that fish living in very deep water are responsible for removing and storing millions of tonnes of CO2 from the atmosphere.
If too many of them are caught then that could have a detrimental effect on climate change.
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Sunday's forecast for west of region
James Wright has Sunday's forecast for the east of the region.
A former Gurkha soldier who lost a leg in Afghanistan has raised over £10,000 for charity - by climbing to Mount Everest's base camp.