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Lateline: City bound

China is experiencing rapid urbanisation. Rural workers are on the move, searching for new opportunities in China's largest cities. This process is fuelling China's economic growth and improving the wellbeing of its citizens. But is the rate of change too fast? Are there pitfalls on the road to prosperity?

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Landline: Feeding soils to grow hungry crops

How do today's farmers improve their crop yields? One school of thought is to go high-tech and use agricultural technologies designed to improve efficiencies and yields. See the role that soil condition plays in gaining those high yields.

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Catalyst: Quoll rescue

Discover what threatens a native Australian predator and how scientists are hoping to save it from extinction. This clip about quolls in the Northern Territory describes the causes of its decline and a rescue strategy to save it from extinction. The strategy has a surprising twist - it features the very thing that is threatening ...

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Catalyst: Plants and increased levels of carbon dioxide

We know that most plants use carbon dioxide to make their own food. So what might plants look like in 100 years if carbon dioxide levels continue to increase - will they become enormous and overtake our backyards? View the possible effects of changes in atmospheric carbon dioxide on plants and, in turn, humans and other animals.

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Atoms Alive: Cells and energy

Cells are like chemical factories. Discover the different ways cells get energy to carry out their daily operations. Learn about the different types of metabolic processes inside cells, such as those that break down molecules to release energy and those that assemble building blocks to make more complex components.

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Marla Spivak: Why bees are disappearing

This is a video of a TED (Technology, Entertainment, Design) talk by Professor Marla Spivak about the dramatic decline in the number of bees. The 16-minute video begins with a discussion of why humans should care about bees, including their critical importance for the world's food supply. Professor Spivak explains that ...

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TAR-RU: The story of Lake Victoria

This 46 minute video explores the environmental and cultural impact of a dam on Lake Victoria in south western NSW and current efforts to protect the significant Aboriginal heritage and environmental values of the area. It provides a comprehensive historical case study about the Aboriginal culture at TAR-RU and the effect ...

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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: 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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BTN: Animal recognition system

We have all heard of human face recognition systems, but have you heard of animal recognition technology? Watch this clip to discover how an 'animal recognition gate' is being used to separate the sheep from the goats. Find out how this innovative application of a popular technology might help farmers manage pest animals ...

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Catalyst: Why plants are good for liveable cities

Central Park in Sydney was voted the world's best tall building. It is known for the plants in its beautiful vertical gardens which cover its surfaces, but did you know that the garden is not purely decorative? Watch this video to find out what other purpose the vertical garden has.

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Watering the largest river red gum forest

This nine minute video explores the importance of environmental flows to maintain the ecological health of the Barmah-Millewa Forest in the Murray Darling Basin. This forest is a RAMSAR site and an icon site of the Living Murray with great social, economic, cultural, environmental and spiritual significance. While the forest ...

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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. ...

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Daisies describe an ecosystem

Ecosystems are affected by many factors including increasing temperatures, which many scientists believe threaten natural systems on Earth today. This creative clip uses a theoretical world of black and white daisies to show how changes to the natural reflectivity of a planet's surface impacts temperatures and populations. ...

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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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Keeping up with carbon

What is the carbon cycle and how does it affect climate? Find out in this fascinating clip from NASA, produced to celebrate Earth Science Week 2009.

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Reforestation as a climate change strategy

This is a video about an agroforestry project to restore the tree cover of microwatersheds in the High Andes of Peru in which the Chumbivilcas community worked with the Food and Agriculture Organization (FAO) and the Millennium Development Goals Achievement Fund. Interviews with the local mayor and project officers emphasise ...

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Catalyst: Waves supply nutrients to marine ecosystems

Dive through the marine kelp forests off Australia's western coast and discover how ocean waves help cycle nutrients to sustain the plants and kelp forests of marine ecosystems.

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Catalyst: Aboriginal fire knowledge reduces greenhouse gases

Come on an eye-opening trip to Western Arnhem Land in northern Australia to find out how Aboriginal fire-control techniques are used to reduce greenhouse gas emissions by thousands of tonnes.On the trip you will also find out how exploding ping-pong balls are used to create low greenhouse gas firebreaks at the right time ...

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Catalyst: River porpoise rescue

Can you imagine seeing porpoises leaping out of the water in a river near you? Sounds unlikely, doesn't it, but that's what people living along the banks of the Yangtze River in China often used to see. These Yangtze finless porpoises are now rapidly disappearing. Find out why and what Chinese scientist Professor Wang Ding ...