Can undersea oil rigs become homes?
US Bureau of Ocean Energy Management
In coming decades many oil and gas platforms will have to be retired. Rather than being dismantled, they could be given a new lease of life as artificial reefs, helping industry and the environment.
A satellite image of the 2004 boxing day tsunami striking the southwestern coast of Sri Lanka. Could a similar tsunami hit Australia?
Australia is surrounded by ocean, so is not immune to the effects of tsunamis. But how significant is the risk?
Somewhere out there: but where best to search the Indian Ocean for flight MH370?
AAP Image/Richard Wainwright
Further analysis of the debris from missing Malaysia Airlines flight MH370 point to a possible new search area in the Indian Ocean.
Scientists are using detailed computer models of the ocean to trace debris back through the currents to the potential crash site.
Hey, is there something on my back?
Nathan J. Robinson
Tiny animals along for the ride, called epibionts, could be used as living data-loggers. Researchers can glean info from them that could help inform turtle-friendly fisheries management decisions.
Fluorescent image of the coral
Pocillopora damicornis. The field of view is approximately 4.1 x 3.4 mm.
Andrew D. Mullen/UCSD
Could this new technology do for the microscopic marine world what the first telescopes did for the heavens above?
stockmdm / shutterstock
Closing the passage between the Atlantic and Pacific oceans strengthened the gulf stream and helped kick off ice ages.
Climate change isn't the only thing making sea levels higher and cyclones more intense.
Jason Vandehey / shutterstock
Researchers have long used such techniques to learn about currents and tides.
The oceans are teeming with life and potential – but the high seas are still largely ungoverned.
The open oceans are the world's "wild west", falling outside any nation's jurisdiction. UN negotiations are aiming to draft new laws for the high seas.
The new boat will join RRS Ernest Shackleton (pictured) in the UK’s fleet.
A new polar research vessel might be saddled with a daft name, but its work is all important.
Shamil Zhumatov / Reuters
Things can change disturbingly quickly – just ask the people who once farmed the Sahara.
Early signs of bleaching coral in Kaheohe Bay Hawaii, August 2015.
XL Catlin Seaview Survey / Underwater Earth
Many corals can't make it through the bleaching events caused by warming ocean waters. But some can – and scientists are trying to learn more about the sources of their resilience.
Raymond Wae Tion/EPA
Stray debris on a distant beach could well be the first remnant found of missing Flight MH370.
The Argo ocean profiling floats are part of a year-round monitoring network for the world’s oceans.
In 1985, when CSIRO's marine labs were launched, a seven-day weather forecast was little better than chance. Now, thanks to advances in our understanding of the oceans, our predictions are far better.
The World Heritage Committee has called for a comprehensive assessment not just of the threats to the Great Barrier Reef, but of their cumulative effect.
AAP Image/Australian Institute for Marine Science, Ray Berkelmans
The government says it has met all of the recommendations for safeguarding the Great Barrier Reef. But a close reading of the dozens of UN recommendations shows that many have been only partly fulfilled.
A dredging ship in Queensland’s Gladstone Harbour.
AAP Image/Dave Hunt
A new report aims to establish exactly what we do and don't know about the effects of dredging on the Great Barrier Reef, and suggests that managing fine sediments will be one of the biggest challenges.
It’s not always as ostentatious as Dubai, but our coastlines are home to ever-growing numbers of manmade structures.
Urban sprawl has spread to the sea, as more and more man-made structures are being built along the world's coastlines. Just as we do on land, we need to think about how to build sustainably at sea.
A new research expedition is documenting the deep-sea denizens of the Perth Canyon, such as this flytrap anemone and basket star.
UWA/Schmidt Ocean Institute
The Perth Canyon, off Australia's west coast, is twice the size of the Grand Canyon. But only now, with the help of remote-controlled submarines, are researchers finding out what lives in its depths.
Researchers deploy robotic Argo floats into the ocean to measure temperature.
The oceans are continuing to warm steadily despite an apparent slowdown in global warming at the earth’s surface, according…