The change in ocean temperatures brought on by climate change could lead to an extreme cold period in europe due to a change in the

The answer would be:

Thermohaline circulation

It has an impact on climate because when the currents continue to flow through the ocean, cold water is likely to be denser and this density has salt in it. This is important for the ocean, for it bring nutrient water in the surface and to freshened the polar region’s of earth associated with global warming.