The Catlin Seaview Survey, later renamed the XL Catlin Seaview Survey, was a major scientific expedition which commenced in September 2012, whose aim was to document the composition and health of coral reefs worldwide. Specifically, the survey aimed to "carry out a rapid assessment of the current state of coral reef systems and to make this scientific record publicly available for scientists worldwide to use". The survey was sponsored by the Catlin Group until the survey ended when the Catlin group ended sponsorship. The original team created a film, chasing coral and a new, global initiative known as 50 reefs.[1]