We use a global 3-D chemical transport model (GEOS-Chem) to interpret new aircraft. surface. and oceanic observations of methanol in terms of the constraints that they place on the atmospheric methanol budget. Recent measurements of methanol concentrations in the ocean mixed layer (OML) imply that in situ biological production must be the main methanol source in the OML. https://parisnaturalfoodes.shop/product-category/ff-hand/