Drones monitor impact of seaweed
20 February 2013 Last updated at 14:31 GMT
Scientists from the University of Birmingham have been working with space agency Nasa to use high-flying robot drones to study the Earth's atmosphere.
Researchers are gathering the data and comparing it to research already collated at the University of Birmingham to see how natural resources - particularly seaweed - are affecting the Ozone layer.
Professor Robert MacKenzie, from the university, said the study was not primarily interested in the impact pollution was having on the Ozone layer - only "natural processes".