Rather than breathing in and out through the mouth, fish use a one-way system, passing water in one direction over their gills.
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Environment + Energy – Articles, Analysis, Comment
Displaying 2051 - 2075 of 7442 articles
An aggressive US climate policy rollout could provide a much needed dose of reality to the climate discourse in Canberra – and show Australia the transition can be done.
The small fire and heatwave prone town of Tarnagulla got together, applied for funding and co-produced a resilience action plan so they’re better prepared for the next disaster.
Partially protected areas don’t have more wildlife than unprotected areas. They consume conservation resources and occupy space that could otherwise be allocated to more effective protection.
For the past 50 years, international animal cognition research has focused on how tool use is related to animal intelligence. But new research casts doubt on long-held assumptions.
Humanity is destroying Earth’s ability to support complex life. But coming to grips with the magnitude of the problem is hard, even for experts.
Zero emission? Carbon neutral? Carbon negative? What does it mean to achieve ‘net-zero’ emissions?
What if we had a system, like Medicare, where costly fire prevention measures were subsidised?
Untreated wastewater is responsible for the deaths of 800 children under five every day, and inflicts serious damage to the environment. Knowing where sewage ends up is vital.
Learn how cicadas, the world’s loudest insects, create their cacophony, and why people in ancient Greece and ancient China admired them.
Cities occupy just 3% of the Earth’s surface, yet more than half the world’s population live in urban environments. We need nation-wide plans to keep our cities cool so no one gets left behind.
Far-right Trump supporters are afraid American democracy has been overturned by their left-leaning ‘opponents’, even as they themselves actively undermine liberal democratic values and institutions.
The end of coal-fired generation in Australia is inevitable. But the federal government can do more to ensure an orderly transition to renewables – avoiding price spikes and supporting workers.
Australia’s invertebrates have an ancient lineage and a fascinating evolution. Get up close with macrophotography to discover tiny, unique animals you’ve probably never seen before.
Different animals have different ways of showing they’re happy. Their behaviours aren’t as straightforward as you might think.
As well as my work as a sociologist, I’m also a professional snake catcher. I don’t expect people to love snakes, but I believe they should know more about them - and it’s not all bad.
Indigenous languages around the world are declining at a rapid rate, but linguists can help language revival by working with communities of native speakers.
Once thought to occur only in birds and mammals in the Northern Hemisphere, due to the more pronounced winters, we now know torpor is widespread in small Australian mammals.
What blooms underground and smells like vanilla? The answer is an underground orchid, and I never expected to see one, let alone have the privilege of working on them.
Not all frogs ‘ribbit’ — some sound like a motorbike changing gears or a tennis ball being hit. This summer, keep your eyes and ears out for these Aussie frogs.
The good projects have already been identified and interest rates are low. We could speed up the electricity transition by decades.
In many parts of Australia, the trees are in full flower in December. But once they start you must be quick to catch sight of them, the impressive flower show doesn’t last more than a couple of weeks.
A person who exercises, attends sporting events as a spectator and takes their kids to the oval or swimming pool will create 935 kg of CO₂ per year if using their car.
Given long-term forecasts for growing urban populations and an increasingly variable climate, local authorities will have to think about how best to encourage people to conserve water.
As the holiday season begins after months of reduced travel, wildlife hospitals are braced for a new wave of admissions.