Bleached staghorn coral on the Great Barrier Reef. Many species are dependent on corals for food and shelter.
Corals, mangroves and seagrass habitats have been affected by extreme weather events, and some may never recover.
Plectropomus leopardus from the Whitsundays.
David Williamson/James Cook University
Strictly enforced no-take marine areas benefit everyone, from the fish to fishers.
Tourists are experiencing ‘Reef grief’.
Severe coral bleaching may have been the crucial factor in bringing home the reality of climate change for many people.
Bushfires ravaged parts of central Queensland amid heatwaves in November 2018.
Australia's environment took a beating in 2018, as temperatures rose, rainfall declined, the health of rivers and ecosystems worsened, and floods, droughts and bushfires all took their toll.
After repeated bleaching in 2016 and 2017 corals on the Great Barrier Reef are producing far fewer offspring.
Keep slip slop slapping this summer.
Despite bans around the world, there's no empirical evidence sunscreens cause coral bleaching.
Blacktip reef sharks are one of the most common species on the Great Barrier Reef.
Banning fishing in no-take marine reserves on the Great Barrier Reef does not protect sharks as well as received wisdom would tell you.
Fire danger conditions are worsening in many areas of Australia.
AAP Image/David Crosling
Australia is facing an increase in extreme heat, fire danger weather, floods and marine heatwaves, according to the latest biennial snapshot from the Bureau of Meteorology and CSIRO.
Sangalaki Island, Indonesia.
The Coral Reef Image Bank image provide by Simon Pierce.
Coral reefs are in trouble, but other marine species are also feeling the strain but are off the conservation radar.
Many Caribbean reefs are now dominated by sponges.
Marine sponges are ancient organisms that have survived mass extinctions. Many are more tolerant of climate change and may dominate over corals in future reef systems.
The GBR Foundation fills a gap in funding research that might be seen as too much of a risk by other agencies.
AAP Image/Alison Godfrey
Federal Labor has pledged to withdraw the A$443 million given to the Great Barrier Reef Foundation. But the foundation's decisions are led by science, and free of undue influence, its chief scientist says.
Successive governments have seen the Great Barrier Reef not just as a scientific wonder, but as a channel to further economic development.
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.
Marine parks protect fragile ecosystems, like coral reefs.
What would you do if you saw a fisher breaking the law? Would you report the offender to the police? Confront them? Or would you do nothing? These choices affect the future of marine protected areas.
acro_phuket / shutterstock
Scientists have used 'tree rings' in coral to identify centuries of stress.
Can geoengineering buy the coral reefs more time?
Oregon State University/Flickr
Climate mitigation efforts are unlikely to be enough to save critical ecosystems like the Great Barrier Reef. We may need to consider more radical environmental engineering.
Some fish fared better than others amid the extreme temperatures of the 2016 heatwave.
Rick Stuart-Smith/Reef Life Survey
The 2016 heatwave that caused mass bleaching on the Great Barrier Reef didn't just kill corals - it also significantly changed the makeup of fish communities that call these reefs home.
Silent Evolution by Jason deCaires Taylor. Taylor makes sculptures and sinks them beneath the sea to create artificial reefs.
© Jason deCaires Taylor
Not everything humans put in the ocean is garbage. From walls of tyres to sunken sculptures, reef restoration is both a science and an art.
Green sea turtle eating seagrass off Lizard Island.
New research highlights the role of sea turtles and dugong in the dispersal of seeds and maintenance of seagrass meadows, an important marine habitat and the primary food source for both animals.
The new funding is focused on measures that are already in the foreground.
The federal government's new $500 million funding package for the Great Barrier Reef seems predominantly focused on the tactics that are already being tried, without much success.
Staghorn and tabular corals suffered mass die-offs, robbing many individual reefs of their characteristic shapes.
ARC Centre of Excellence for Coral Reef Studies/ Mia Hoogenboom
The 2016 bleaching event resulted in 30% mortality on the Great Barrier Reef, with many corals dying of the heat before they bleached and the loss of branching corals creating less complex reef structure.