New Research Reveals Oceans Cool the Climate More Than We Thought

**Groundbreaking research** has revealed the significant role that oceans play in climate regulation, not just through heat distribution but also via the emission of sulfur gases like methanethiol. Traditionally, the focus was on dimethyl sulfide, known to form aerosols that reflect solar radiation and have a cooling effect similar in magnitude to greenhouse gases. However, **this study**, involving collaborators from the Institute of Marine Sciences and the Blas Cabrera Institute in Spain, has quantified methanethiol emissions for the first time, exposing its substantial impact on climate cooling, particularly over the Southern Ocean. _This discovery_ was facilitated by new measurement techniques and satellite data, revealing that methanethiol emissions increase known marine sulfur outputs by 25%. This discovery will improve climate models, leading to more accurate predictions of future climate scenarios. The importance of sulfur aerosols in climate regulation is underscored, alongside the pressing need for human action to mitigate ongoing climate change.