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Kangaroos are common in some areas but scarce in others. AAP Image/Lukas Coch

FactCheck: are kangaroos at risk?

Are kangaroos in plague proportions, necessitating large-scale killing and a commercial industry, or are they in decline?
Hefty problem: a local council was left with a huge clean-up bill after a dead whale washed up in Perth last year. AAP Image/City of Stirling

Dead whales are expensive – whose job is it to clear them up?

Dead whales can cost beachside ratepayers a lot to clean up. The alternative is to tow them away before they wash up - but the legal question of who does the job is far more complex than it sounds.
Lake Eyre: pretty dry today, but before 50,000 years ago it was an inland sea teeming with life. Matt Malone/Wikimedia Commons

Drying inland seas probably helped kill Australia’s megafauna

Huge beasts roamed Australia before suddenly dying out around 50,000 years ago. New research shows that at this time, vast inland lakes dried up, potentially explaining the megafauna’s demise.
In most states, the issue of container deposit legislation has festered for decades. Brian Finestone/Shutterstock.com

Spin the bottle: the fraught politics of container deposit schemes

Four decades after South Australia’s container deposit scheme began, New South Wales has finally overcome industry resistance and launched its own. Could the rest of the country now follow suit?
Use your solar photovoltaic panels to heat your water too, and you could cut the amount of excess electricity you give away cheaply to the grid. zstock/Shutterstock.com

Get more out of your solar power system by using water as a battery

Most solar power households feed excess electricity back into the grid, for very little financial reward. A hot water heat pump could put that power to better use, by heating water for evening use.
Not at loggerheads: jobs and the environment can coexist in Queensland’s north. Willem van Aken/CSIRO/Wikimedia Commons

Jobs versus the environment: the debate Queensland can end

Do politicians really have to choose between being pro-development or pro-environment? No, says Allan Dale, and Queensland’s new government has the chance to prove it.
A huge float called an ‘actuator’ is lowered into the water off the Perth coast. AAP Image/Carnegie Wave Energy

Surf’s up – can wave energy rise to the challenge in Australia?

Australia’s first large-scale wave energy project is online off the coast of Perth. As Hugh Wolgamot writes, it’s a promising development, but technological challenges remain.
Orange roughy - one of the vulnerable fish species caught on the high seas. CSIRO Science Image

Close two-thirds of the ocean to make fishing better and fairer

The high seas – the area outside any country’s national waters – cover nearly two-thirds of the oceans and are largely ungoverned. Some fishers do venture into the open ocean and over the past century…
The Onkaparinga River, part of the catchment that supplies around half of Adelaide’s drinking water. Justin Ratcliff/Flickr

Adelaide is facing a dry future – it needs to start planning now

Imagine a future where the yearly flow into one of the largest water reservoirs of a major Australian city could halve within 70 years. This is a scenario that Adelaide could face if the world continues…
Secret footage revealed that Australian greyhound trainers are still using the banned practice of live baiting. Animals Australia

Greyhound racing in disgrace as riches push trainers to barbarity

Australia’s greyhound industry is reeling from the ABC’s Four Corners expose, featuring graphic footage of racing dogs tearing other mammals apart in the illegal training practice of live baiting. The…
Shell chief Ben van Beurden is pointing the way for oil companies to demand greater certainty over future climate policy. EPA/FACUNDO ARRIZABALAGA/AAP

Shell chief calls for climate action, but what are the firm’s motives?

In a speech last Thursday at International Petroleum Week – one of the biggest events on the industry’s calendar – Ben van Beurden, chief executive of Royal Dutch Shell, argued that big energy companies…
Water in Western Australia is one of the Academy’s examples of where climate is having an impact, and where communities are already adapting. Bram Souffreau/Wikimedia Commons

Australian Academy of Science brings climate change closer to home

The Australian Academy of Sciences today released the new The Science of Climate Change: Questions and Answers. This is an extensively revised update of a similar publication in 2010. Its stated purpose…
The University of Sydney is hoping to chart a path to climate-safe investment. University of Sydney

Universities are (slowly) feeling their way forward on divestment

Another Australian university has outlined plans to reduce the exposure of its investments to climate change, and is taking a contrasting approach to the Australian National University’s high-profile divestment…
Backpackers may have a reputation for over-indulgence, but are more sustainable than you might think. Siim Teller/Flickr

Seven sustainability lessons we can all learn from backpackers

With a reputation in Australia for public drunkenness and antisocial behaviour, backpackers might not seem likely role models for “greener” ways of living. Most backpackers are from upper- or middle-class…
The Olympic Dam uranium mine in South Australia. AAP Image/BHP Billiton

We’ve already had the nuclear debate: why do it again?

South Australian premier Jay Weatherill made the curious announcement on Sunday that there will be a Royal Commission to examine the state’s future role in the nuclear industry. There has been bipartisan…
South Australia already mines uranium. Could it become a nuclear state? AAP Image/Quasar Resources

Royal commission into nuclear will open a world of possibilities

South Australian premier Jay Weatherill on Sunday announced a formal inquiry into the future role of the state in the nuclear fuel cycle, which will be tasked with considering options across the full gamut…
Superbug breeding ground? It’s not just hospitals that have to battle the threat of antibiotic-resistant microbes. Wong Wentong/Shutterstock.com

The water industry needs to join the fight against superbugs

The fight against antibiotic-resistant bacteria – so-called “superbugs” – is a huge challenge, one that the World Health Organization has described as a grave global problem. When superbugs hit the headlines…
Kelp covered landscape in Western Australia. Dan Smale

Marine heatwaves threaten the future of underwater forests

Western Australia’s marine environment is unique. Two world heritage areas, the largest fringing coral reef in Australia, and more than a thousand kilometres of underwater forests, supporting incredible…