What effect would a cold ocean current have on climate? Why? This is science im in 6th grade please help I hate to write in a box and I don't know what to write

Because the Ocean is the reason our climate even exists, if the ocean's temperature, water parameters, and so on changed, then a cold ocean current would lower air temperatures in a certain area, form cold fog/misty conditions, and result in rapid radiation cooling.

I'm not an expert, but I hope that helps.

petroleum? coal maybe?

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