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Soil is a non-renewable part of the environment. Can it sustain food production for our growing population? www.shutterstock.com

In 100 years’ time, maybe our food won’t be grown in soil

The thin layer of soil on our planet’s surface ultimately sustains us all, but it’s a finite resource. With a growing global population, perhaps it is time to start looking for alternatives.
Players from all over the world, including Australia’s star forward Thon Maker - originally from South Sudan - play in the National Basketball Association in the United States. Tannen Maury/EPA

How a race scare left South Sudanese star basketballers with nowhere to play

Star basketball players are suffering the fallout from a race scare campaign by politicians from the Liberal party over crimes committed by a small number of young people who came to Australia from South Sudan
All cancers have a similar DNA pattern that differs from that of non-cancer cells. from shutterstock.com

One test to diagnose them all: researchers exploit cancers’ unique DNA signature

Our research has found that cancer DNA forms a unique structure when placed in water. We used this finding to develop a test that can detect cancerous DNA in less than ten minutes.
Flooding in Sydney last week was the latest example of Australian cities’ lack of resilience to a more extreme climate. Dean Lewins/AAP

Design for flooding: how cities can make room for water

Australia’s coastal settlements are highly exposed to the impacts of climate change. Climate-resilient urban landscapes that can cope with large amounts of water need to become the new normal.
For many respondents, leaving a newsroom has allowed a re-evaluation of work-life balance. Mal Fairclough/AAP

New research reveals how Australian journalists are faring four years after redundancy

Since leaving secure jobs in newsrooms, employment has been unstable for many former journalists – but job satisfaction has been surprisingly high.
A Indian man gets a free eye test on the anniversary of the death of Bhimrao Ramji Ambedkar, revered for his efforts to end discrimination against the untouchables. AAP/Divyakant Solanki

How Twitter got blindsided by India’s still-toxic caste system

A poster proclaiming “Smash Brahminical Patriarchy” has landed Twitter’s head Jack Dorsey in trouble in India. It shows just how invisible caste is to outsiders.
Tony Mokbel was sentenced to at least 22 years in jail in 2012 after pleading guilty to large-scale drug importation - but some argue he could get a new trial or even walk free given the latest revelations. Justine Smith/AAP

Victorian royal commission into policing needs to take a broad approach: here’s why

The royal commission will examine the conduct of a defence barrister who became an informant to the police - supplying information on her own clients that had been given to her in strict confidence.
Freedom of speech on Australian university campuses has been heavily debated this year. www.shutterstock.com

Special pleading: free speech and Australian universities

Glyn Davis lays out the evidence (or lack thereof) for the argument that free speech on campuses is at risk.
The Narrabri ‘Big Picture’ event in November 2015 brought together people from across the region in opposition to coal seam gas extraction.. Selen Ercan

Getting to the heart of coal seam gas protests – it’s not just the technical risks

While anger mobilises opposition to coal seam gas projects, it is also joy, especially the joy of social connection, that helps to sustain involvement.
There are five species of kiwi in New Zealand. Their total number is currently at around 70,000 but the populations may have declined by two thirds in 20 years. from www.shutterstock.com

NZ is home to species found nowhere else but biodiversity losses match global crisis

New Zealand is the last major landmass to be settled some 800 years ago. Since then, changes in land use have been extensive and catastrophic for the country’s unique flora and fauna.
Modern slaves are not kept in literal chains, but this does not justify being oblivious to it. Consumers should care about how a product is made. Shutterstock

We all buy slave-made products: here’s how we avoid feeling guilty

Hidden slavery is a growing global problem but we continue to turn a blind eye and embrace a seemingly insatiable demand for fast, cheap goods and services.