Research published in Nature Communications reveals that tiny waves in the deep ocean, previously thought to only impact over long timescales, can significantly affect surface conditions within a single year.These waves create turbulence and mixing that transport nutrients, heat, and carbon between the atmosphere and ocean depths.

Scientists used chlorofluorocarbons (CFCs) and dye experiments to track how deep waters move, finding some currents travel thousands of kilometres in just 40 years.This challenges existing climate models which underestimate small-scale ocean processes.

The study highlights critical implications for marine ecosystems, global fisheries, and ice melt patterns, urging updates to climate models with more accurate parameterisations.Observational gaps remain, but advancements in technology are improving understanding of these complex interactions.