New research challenges the assumption that world food production must double by 2050 to keep up with demand. The authors call for more focus on conservation through measures such as these diverse winter cover crops planted on a Pennsylvania dairy farm.
According to widely-cited estimates, world food production must double by 2050 to keep up with population growth. New research challenges this target and calls for balancing growth with conservation.
There is no one-size-fits-all answer to global food insecurity except that the West needs to learn to consume, and waste, less.
There are two competing visions for Australia’s future, argues former prime minister Kevin Rudd.
Former prime minister Kevin Rudd writes of Australia having lost its national bearings and being powerless to act to find its way in the world.
A hiker perched at the top of Tasmania’s Tarkine wilderness.
AAP Image/ Jenny Archer
the end of the mining boom has breathed new life into parts of the Tasmanian economy. But there are also several worrying indicators -- like population growth and unemployment -- to be addressed.
More than half of Yemen’s population already lacks food security.
Yahya Arhab / EPA
Feeding nine billion people by 2050 is possible – if we start applying some science.
Proposed developments in Brisbane illustrate the scale of urban consolidation.
flickr/Brisbane City Council
In the media, urban consolidation is often depicted as a threat to Australian suburban life. In reality, it's a result of managed planning processes to ensure growing cities remain liveable.
Melbourne is one of the fastest-growing cities in the developed world, and the other big Australian cities aren’t far behind.
With the failures of past planning now apparent, the unruly threat of a damaged and depleting planet is ushering us toward a fourth era of urban restructuring. What might City v4.0 look like?
Sydney’s farms on the urban fringe produce 10% of the city’s fresh vegetables.
Farms on Sydney's fringes supply 20% of the city's food. That could drop by more than half if urban sprawl isn't kept in check.
Most of the new schools needed will be primary schools.
Inner-city parents in urban redevelopment zones are the most likely to have problems getting their children into a government school.
Australians are living and working longer, marrying later and earning more that past generations.
Divorce rates are on the decline in Australia, people are marrying and having children later in life, and more of us live alone. Our experts respond to the new report on Australia's welfare.
Clean water is one of many scarce resources that will be under pressure.
Humanity is on course for a population greater than 11 billion by the end of this century, according to the latest analysis from the UN’s population division. In a simple sense, population is the root…
South African exports to the rest of the continent have more than doubled over the past 20 years. This has been driven by agricultural products, including maize.
The demand for agricultural products in Africa is expected to rise over the next 35 years due to factors such as population growth, urbanisation, economic growth and changing diets.
There’s a sense that people who want to be child-free are somehow draft-dodging the duty of parenthood – we’ve done it and suffered, so why haven’t you?
Societies overwhelmingly endorse reproduction, but the pressure this places on people who don't want to have kids may be putting their health at risk.
India’s sterilisation programme focuses on women.
A sterilisation camp held in Chhattisgarh, an impoverished state in central India, has claimed the lives of 13 women, most of whom were young and marginalised. The women, who died within hours of the procedure…
By 2100 there could be 11 billion people on Earth, but there’s no quick way to slow growth.
The rise in population since 1900 has been so rapid that up to 14% of all humans that have ever lived are still alive today, according to recent research. Other research shows that slowing population growth…
Our current trajectory suggests that the world system will realise a decline in living standards.
Image sourced from www.shutterstock.com
In 1972 a group of scientists, known collectively as the Club of Rome, constructed a detailed mathematical model to test…
How big is too big? Australia’s population is growing faster than expected.
The latest population projections from the Australian Bureau of Statistics (ABS), released earlier this week, suggest Australia’s future population growth will be considerably greater than previously indicated…
China’s one-child policy, however controversial, should be given some of the credit for positive outcomes such as rising levels of education.
The recent announcement that China’s one-child policy will be partially relaxed will be celebrated worldwide by libertarians, human rights activists and, most importantly, Chinese couples who have longed…
Australia’s population is forecast to reach 35 million by 2050, meaning Australia Day citizenship celebrations could get even bigger. What is the current ‘face’ of our nation?
Welcome to the **The Conversation Election 2013 State of the Nation* essays. These articles by leading experts in their field provide an in-depth look at the key policy challenges affecting Australia as…
With our population set to top 23 million, how have we got here, and what is the future of sustainable population growth in Australia?
Australia’s population reaches 23 million today according to the Australian Bureau of Statistics’ (ABS) online population clock. How do they know it’s today? They don’t really. The clock provides an estimate…