The transatlantic dust transport benefits the Amazon rainforest by replenishing its phosphorus supply, essential for its biodiversity. However, the dust also impacts air quality, particularly in West Africa, the Caribbean, and parts of the southern United States, where it can exacerbate respiratory conditions like asthma and COPD. In West Africa, high dust concentrations have been linked to increased infant mortality rates. Additionally, the Saharan Air Layer can suppress Atlantic hurricane development by introducing dry air and wind shear, altering storm formation patterns.