An Argo float is released into the Indian Ocean to gather information on temperature salinity and depth, helping determine the rate of climate change.
Subscribe to the BBC Worldwide channel: http://bit.ly/yqBWhy
Check out the Oceans playlist: http://bit.ly/zGE8P5
This is a channel from BBC Studios who help fund new BBC programmes. Service information and feedback: https://www.bbcstudios.com/contact/contact-us/