Project Highlights Two versions (1° & 0.25°) of OAFlux products: what are the differences? Currently ongoing: New initiative on the Arctic fluxes Cool things we do: Machine learning on air-sea fluxes Ocean is warming up. But why is it so difficult to quantify the amount of heat gained at the ocean surface? Closing the water cycle from observations across scales: Where do we stand? Have the surface winds over the European and Asian marginal seas increased under the regional warming?