Birds can usually sense when they are not feeling well and like many other creatures, seem to seek out-of-the-way places to be alone.
Much of the world's ocean is teeming with 'cryptic' fish species, which are small and hard to spot. But a new technique shines a light on these fish, which may in turn help to keep our seas healthy.
Day Zero will be the start of active water rationing when taps will be cut off and people will have to go to collection sites.
Nuclear bomb tests potentially mark the start of a new geological epoch: the Anthropocene.
Drink containers end up in the ocean at a truly alarming rate. Simply paying people a small amount to return them cuts that rate by nearly half.
Using real apes and monkeys as actors in film and TV encourages people to see them as pets.
The fossil fuel era won't last forever. And a new set of countries will find their reserves of lithium, copper and rare earth metals are in high demand.
Our energy system puts consumers more or less at the mercy of business and regulators. What if the future of energy meant putting the power back in the hands of households?
Magnets, air blowers, centrifuges, crushers: your recyclables go through a lot before they get turned into something else.
Oysters aren't just good for a feed. They also give a vital boost to coastal ecosystems, which is why efforts are underway to restore Australia's once-abundant oyster reefs to their former glory.
Two decades ago, the then SA premier, John Olsen, defied a campaign promise and announced plans to privatise the state's electricity industry. It's been a high-voltage issue ever since.
A surprising study published in Science found that as fuel emissions drop, consumer products are playing a larger role in air pollution.
New South Wales has pledged to walk away from the Murray-Darling Basin Plan, while Victoria's water minister has declared the plan 'over'.
Solar windows would need to trap enough light to generate power, while letting through enough to keep buildings light. Thankfully, newly developed semitransparent cells offer to do just that.
The federal government considered prosecuting Adani's potential environmental negligence over the history of its Australian CEO.
A double standard exists concerning the acceptance of Traditional Knowledge by practitioners of Western science.
Perth, unlike Cape Town, faces no prospect of its tapwater running out. But other problems lurk beneath the surface, as the city's drying climate puts increasing pressure on irrigation and wetlands.
A few thousand fake ducks, a group of experienced wildlife spotters and a drone have proven the usefulness and accuracy of drones for wildlife monitoring.
Cities all over the world are facing growing challenges to provide clean, reliable water. And many of the fixes, such as desalination plants, have a huge carbon footprint.
The current review of standards for egg and poultry farming does little to assuage fears that the industry wields too much influence. Only an independent regulator can restore public confidence.
King tides and rising seas are an increasing and predictable threat, but adaptation plans to limit the damage to coastal property are still not managing the political obstacles.
Groundwater is out of sight, but it shouldn't be out of mind. As cities struggle to cope with drought, we should remember that our largest stocks of water are hidden deep underground.
New research has used genetic analysis in a world-first effort to accurately estimate Australian and New Zealand white shark numbers.
Australians import millions of flowers for Valentine's Day. Let's consider some ways to be eco-friendly.
Millions of tonnes of plastic garbage winds up in our oceans each year. Voluntary pledges haven't worked. It's time for Canada to advocate for an international plastics treaty.
Most of us lack the expertise to evaluate climate science, but there are ways anyone can spot a badly reasoned argument.
From damaging the environment to contaminating the solar system, SpaceX's successful launch of the Falcon Heavy rocket also poses risks.
The situation in Perth in particular has some parallels to that of Cape Town, but Australian cities responded to the last big drought by investing in much bigger water supply and storage capacity.
To answer this question from Fiona, age 6, we need to know some things about clouds and light.