Opinion

coronavirus test

To control the COVID-19 pandemic through random testing would require about 6.5 million test a day. Using group testing and machine learning could get that number down to fewer than 40,000 day.

Melbourne tram

The best option is for infected people to be admitted to hospitals or other suitable health facilities. This will help prevent transmission within families.

young woman wearing face mask

As Melbourne returns to lockdown, the evidence suggests routine mask-wearing - as seen in many countries but not so far in Australia - could be a valuable tool to help stop the spread of COVID-19.

Cows standing in water

As the planet continues to warm, extreme weather events such as heatwaves and heavy rainfall are becoming more frequent, intense and longer, according to global weather data.

A person sitting on top of a mountain

As the world warmed from the last ice age, a rise in carbon dioxide levels stalled for nearly 2,000 years. That's always puzzled scientists, but now they think they know what happened.

Former High Court judge Dyson Heydon

In an open letter to Attorney-General Christian Porter, more than 500 women working in the law from across Australia have sought changes to the way judges are disciplined and appointed.

empty road in downtown Bangkok

An illiberal turn across the region has been exacerbated by the pandemic. Australia should take note.

man under burning sun

Heatwaves have become longer, hotter and more frequent. This trend is accelerating from climate change.

tax reform cogwheel

Boosting the GST and swapping land tax for stamp duty get headlines, but they never seem to happen.

coronavirus testing

There are some very good reasons why some people decline coronavirus testing, which we need to address before jumping to conclusions.

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