An estimated 4.9 million barrels of oil gushed into the Gulf of Mexico during the Deepwater Horizon spill of 2010. AdvertisementNatural “marine snow” also came into contact with the spilled oil. Marine snow is falling bits of matter, including poop and decaying bits of sea creatures and plants, but in this case the scientists had to describe it as “marine oil snow,” the accumulation of which led to “marine oil snow sedimentation” on the seafloor. AdvertisementIn terms of future research, the scientists said a deeper understanding of photooxidation and marine oil snow is needed, in addition to an improved understanding of how oil spills affect ecosystems. They also advocated for new and better ways of cleaning up oil spills and new methods to track oil spills over time.