MAR MENOR/AMALFI - Since their invention in the 1940s, modern sunscreens have become an essential vacation item, ubiquitous on beaches around the globe. However, after decades of mixing with the world’s seas and oceans via the lathered skin of tourists and sunbathers, the damage caused to sub-aquatic ecosystems by sunscreen ingredients has started to surface. This investigation reveals how sunscreen manufacturers are contaminating Mediterranean waters in Spain's Mar Manor and Italy's Amalfi Coast.