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Listed under:  Science  >  Environmental management
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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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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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Pocket Compass, Ep 5: An immigration nation

Prime Minister Malcolm Turnbull once described Australia as an 'immigration nation'. What do you think he meant by that? Do you agree? |Watch four very different people speak about their experiences as first- and second-generation migrants. What were some reasons they or their parents migrated to Australia?

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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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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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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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Catalyst: Growing avocados

Demand for certain kinds of food changes with time as people's tastes change. Avocados were not always popular, but in recent years their popularity has increased so much that supply cannot keep up with demand. Learn how stem cell scientists at the University of Queensland are leading the way in research that could cut ...

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ABC News: Life on the land for Italian migrants, 1958

Imagine leaving your family behind for years while you set yourself up in a new country. This was the life for many Europeans who migrated to Australia. The clip explores life for the Galluzzo family, Italians who came to live in semi-rural areas around Sydney in the 1950s.

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ABC News: Sydney's Moon Festival, 1979

Discover the activities that take place during the Moon Festival and why it is considered to be one of the most important festivals in the Chinese calendar. In this clip from 1979, ABC reporter Neil Ross attends the Moon Festival in and around Dixon Street and Hay Street, in the heart of Sydney's Chinatown.

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Nationwide: Franklin River campaign

How important is the environment in an election campaign? In this clip, explore the issue that changed Australia's conservation landscape forever: the fight to save the Franklin River. Watch how the Tasmanian Wilderness Society used political and media strategies to influence the outcome of the 1983 federal election in ...

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Introduction to Food Security

This is a video that defines and explores the concept of food security using animated illustrations, spoken commentary, and pauses for discussion. Identifying the accelerating growth of population and the proportion of people who are chronically hungry, it provides the United Nation's definition of food security and its ...

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Catalyst: E-waste, recycling, and sustainability

What happens to electronic waste (e-waste)? Watch this clip about the physics of recycling to find out the way that useful materials are captured from waste at a local materials recovery facility. Presenter Tanya Ha investigates e-waste, the products it comes from, and the sustainability challenges it poses.

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Zhou Daguan's account of Medieval Angkor

The city of Angkor was the centre of the mighty Khmer Empire for five hundred years, beginning around 900 CE. It was not only one of the most populous cities in the world, it featured some of the most sophisticated architecture and infrastructure, particularly in regards to water distribution. In this beautiful animation, ...

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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?

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Birds and totems

Yuin, Bunurong and Tasmanian man Bruce Pascoe shares his delight in encountering birds on Country. Bruce explains the significance of Umburra, or black duck, and his obligation to care for the species. Bruce explains that his brothers and sisters look after other animals, such as kangaroos, bream, wallabies, flathead and ...

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Foreign Correspondent: Cenotes

The Yucatán Peninsula is located in south-eastern Mexico and covers a vast area of coastline south of the Gulf of Mexico. It is a popular tourist destination for people who travel to cities such as Cancún to enjoy sandy white beaches. Explore the subterranean freshwater caverns of this region and discover why this pristine ...

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Food for thought

Food security, or sufficient access to safe and nutritious food, is of rising global concern. Watch this animated clip to discover the main problems facing food security, and to see some suggestions for solutions that might incorporate strategies like waste management practices and emerging technologies.

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Landline: Food shortage: Please, Sir, can I have some more?

Are we headed for food shortages in the future? Many scientists say that food production is becoming a critical issue and that Australia has a part to play in securing food for the world's future. As you watch this clip from 2013, find out how past strategies dealt with the food security issue, and learn about our plans ...

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The explorers’ diaries

When Sir Thomas Mitchell and Sir George Grey explored unknown regions of Australia in the 19th century, they found sophisticated examples of agriculture practised by Indigenous peoples. Writer Bruce Pascoe considers why Aboriginal agriculture, economy and civilisation were not taught to generations of Australians. Do you ...

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Foreign Correspondent: New dam, new house: The Mekong

The mighty Mekong river provides a way of life for millions of people, and is arguably the most important resource in the developing country of Laos. Discover how villagers are being relocated to make way for hydropower dams on this river, which stretches for nearly 5,000 kilometres from the mountains of Tibet to Vietnam. ...