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Catalyst: Would you eat insects?

A lot of resources go into the production of beef. For example, 20 litres of water is needed to produce just 1 gram of beef. In order to produce food more sustainably to feed an ever-growing population, some alternatives to protein have been suggested. What are some of these alternatives? Do you think they will ever replace meat?

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Understanding the causes of climate change

Did you know that climate change is not a recent phenomenon? In the past, natural events led to changes in the climate. Although natural events still affect climate, they're not enough to explain the big changes we've been seeing in the last 150 years. What changes on earth can account for such dramatic changes to our climate? ...

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Meet the Fremantle Port Hostesses

In the 1960s, Marie Novak and Pauline Noble worked for the Fremantle Port Authority as hostesses, welcoming new migrants who arrived by ship. Why were hostesses needed? How do Marie and Pauline describe their time as hostesses? Compare the migration experiences of Marie's and Pauline's families. How did their backgrounds ...

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What Greenland's ice tells us about climate change

Why is it so important to keep our eyes on Greenland's ice and what does it have to do with climate change science? Watch this short animation from NASA to find out!

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BTN: Food wastage

Do you know how much food industrialised nations, including Australia, throw away every year? Global population is set to reach over nine billion by 2050 which will increase demand for food by 70%. What do you think we can do to consume food more responsibly and sustainably? How might we re-direct food that would otherwise ...

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Welcome to Bonegilla Migrant Camp

Following World War II, the Australian government was eager to increase the country’s population. The war reminded Australians that their small population would not withstand an enemy invasion. Further, a larger workforce was needed to develop the postwar economy. European people, many displaced by the war and the spread ...

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Foreign Correspondent: Spawning dams, not fish, on the Mekong?

The Mekong is the largest freshwater fishery in the world; however, this may be about to change. Discover in this 2010 clip how migration of fish species along the lower Mekong may be impeded by the proposed construction of dams along this mighty river. Do the economic benefits of the dam outweigh the potential loss of ...

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Building spaghetti bridges

Have you ever tried making a bridge out of dried spaghetti? What about a spaghetti bridge that can support a roadway and small car? Watch as teams of first-year university students reveal and test their designs. How did they decide what kind of bridges to build? Have a go at designing, testing and building your own spaghetti ...

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TEDMED: What is the source of all life?

This is a video clip of a TEDMED speaker, Howard Shapiro, presenting ideas about improving the nutritional value of plants to address malnutrition and the food requirements of a growing world population. The clip emphasises that poor nutrition has negative health and developmental effects on children, particularly those ...

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Upholding cassava's potential in Africa

This is a video about the importance of cassava for food security in Africa and how the Regional Cassava Initiative supported small-scale farmers whose crops were affected by viral diseases. Plant virologist James Legg explains the extent of the problem and how the viruses are transmitted, and Burundi farmer Aoron Sebomana ...

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Food production in the Murray-Darling Basin

This thirteen and a half minute video highlights the importance of food and fibre production in the Murray Darling Basin. It explores the perspective of the farm families involved in both irrigated and dryland farming and explains how their products are distributed to local, national and global markets. This video also ...

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Foreign Correspondent: Mysteries of Angkor

Did you know that around 800 years ago the world's biggest city was in Cambodia? From the 10th century, Angkor was the capital of the Khmer Empire, which ruled a huge part of South-East Asia for around three centuries. But Angkor was abandoned in the 15th century. Discover how modern archaeological techniques are now helping ...

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Catalyst: What are modular farms?

Modular farms are flexible and self-contained systems that allow you to grow herbs and vegetables without the need for soil or sunlight. What are some advantages of modular farms? What may be some of the disadvantages?

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Foreign Correspondent: Power is money on the the Mekong

Discover why the Lao Government plans to build a hydropower dam at Xayaboury (Xayaburi) on the Mekong River and how neighbouring countries might react. The Mekong River Commission is attempting to maintain a balance for all users of the river. Find out why this is a difficult and complex task.

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Measuring gravity

Did you know you can measure gravity? The more mass an object has, the more gravity it has, so by measuring the mass of something, you can figure out its gravity. Why do you think climate scientists may want these measurements? Watch this NASA animation to find out.

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Low impact sustainable agriculture

This is a video (4:15 min) about how the Stewart family is regenerating their family farm, Yan Yan Gurt West, in south-western Victoria. Presented by family members, the resource describes how the land was over-cleared in the past and its hydrology or water resources were compromised when swamps were drained. The regeneration ...

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Catalyst: Sustainable fish farming

There are already more people around the world who eat farmed fish than people who eat beef. With the world's population and demand for food increasing, why is it so important for us to farm sustainably? One fishery near Kakadu in the Northern Territory practises sustainable farming. Find out what makes this farm so sustainable.

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Foreign Correspondent: Bali - tourism and development

Bali, a world-renowned slice of paradise in Indonesia, is undergoing rapid development to accommodate the increase in foreign tourism. Tourism brings money but it also drives up prices and affects the environment. View this clip to explore the issues experienced by those living in paradise.

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Catalyst: How will fire change the climate?

Considering the impact of a changing climate on the severity and frequency of fires is one thing, but how about the impact of fires on climate? Why does Professor David Bowman describe this scenario as a 'fire spiral'? What are the consequences of a world with fewer forests? As Professor Craig Allen explains, drought and ...

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World’s first bakers?

When did humans begin grinding seeds to make flour? Many people believe bread-making began in Egypt or Mesopotamia as long as 17,000 years ago. Archaeologists have recently found evidence that Indigenous Australians were producing flour 65,000 years ago. Were they the world’s first bakers?