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Articles on Oceanography

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Deep sea sponges and other creatures live on and among valuable manganese nodules like this one that could be mined from the seafloor. ROV KIEL 6000/GEOMAR

Deep seabed mining plans pit renewable energy demand against ocean life in a largely unexplored frontier

Mining nodules from the deep ocean seabed could provide the metals crucial for today’s EV batteries and renewable energy technology, but little is known about the harm it could cause.
The remotely operated vehicle Deep Discoverer captures images of a newly discovered hydrothermal vent field in the western Pacific. NOAA

How deep is the ocean?

In some places, the ocean is almost 7 miles deep. Scientists exploring the ocean floor have found strange sea creatures, bizarre geologic formations and records of Earth’s history.
Successive governments have seen the Great Barrier Reef not just as a scientific wonder, but as a channel to further economic development. Superjoseph/Shutterstock.com

Politicised science on the Great Barrier Reef? It’s been that way for more than a century

The $444 million awarded to the Great Barrier Reef Foundation has been criticised as a politically calculated move. But governments have been asking what the reef can do for them ever since colonial times.
Southern bull kelp can drift huge distances before washing ashore. Ceridwen Fraser

How an alien seaweed invasion spawned an Antarctic mystery

A chance discovery of some kelp that floated for 20,000km before washing up on an Antarctic beach has opened up a new chapter in our understanding of the currents that swirl around the Southern Ocean.

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