Tiny seashells draw carbon to the ocean floor when they die. This is the most significant geological process of carbon storage today, and it might increase in a warmer world, as it did in the past.
Some plant plankton engage in predatory behaviour and consume bacteria. This can contribute to climate change as these plankton stop photosynthesis in warmer temperatures.
Marine fish could serve as a crucial global emergency food supply in times of crisis, if marine ecosystems were in a healthy state to start with.
A harmful algal bloom of Karenia mikimotoi made dozens of surfers sick and killed seadragons, fish and octopuses on two South Australian beaches.
Microplastics go largely unseen but are a scourge of the oceans. Filmmaker Jo Ruxton answers questions about the challenge of filming it.
The world’s oceans are home to innumerable life forms, from sponges to sea lions, and scientists have many creative ways of studying them.
We think of mountains as remote and little affected by human activity. Unfortunately, the negative impacts of what we do has important implications for nature, wildlife and human society.
Coral reefs have shaped Earth in much deeper ways than we usually appreciate.
Plankton in the world’s oldest and deepest lake are being disrupted by exceptionally warm waters.
No place on Earth is free from pollution.
