Researchers are exploring ways to monitor underwater human activity by listening to the natural sounds of sea creatures instead of using whale-harming methods like sonar.
Hydropower is one of humanity's oldest forms of energy, but there are still vast areas of the sector left unexplored.
Our seas and oceans are an impressive force of nature, but they also hold the potential for innovative new environmental solutions.
From sensors inspired by dandelion seeds, to sensors installed on the heads of seals. Sometimes nature itself provides the inspiration for modern environmental technology.
Humans have put a lot of obstacles in the way of fish wishing to migrate and spawn. A new 'Fitbit for Fish' will test just how stressful their journeys are.
Whale faeces is the starting point of many food chains in the ocean. Researchers are now trying to use excrement from the lab as fertiliser to boost the CO2 storage of the oceans.
We're already used to seeing bales of corn waste in our fields, but could they soon become a familiar sight on the ocean floor?
Elephant seals are helping researchers gain new understandings about the conditions of the treacherous Antarctic Ocean.