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Listed under:  Science  >  Earth and space  >  Atmosphere  >  Climate  >  Climate change
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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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Foreign Correspondent: Ethiopia's nomadic pastoralists doing it tough

In 2008, Ethiopia's famines just keep coming, fuelled by prolonged periods of drought, rising food prices and an increasing population. Listen to aid worker Valerie Browning in a program aired that year, as she describes how nomadic pastoralists living in the remote regions of Afar try to survive and make their livelihood ...

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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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Lateline: Carbon capture and storage

Is carbon capture and storage (CCS) the solution to climate change? CCS technology captures carbon dioxide from the flue gases of coal burning power plants and takes it to long-term storage. The coal industry has high hopes that pumping the liquefied gas into underground reservoirs, or geo-sequestration, will provide safe ...

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Catalyst: Impact of coming to school on carbon emissions

How big is your carbon footprint as you travel to and from school? Watch Daniel O'Doherty, 2008 'Action Against Climate Change' Eureka Schools Prize winner, as he determines his hypothesis then designs and conducts a study about carbon emissions. Listen to the recommendations he makes to reduce and offset the emissions ...

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Foreign Correspondent: Dams and dolphins on the Mekong?

If the Lao Government's plans are realised, nine hydropower dams will be built across the Mekong River in Laos, and more across its tributaries. The government wants the country to become the 'battery of Asia'. With this dream comes a host of issues. Listen to reasons why the World Wildlife Fund (WWF) suggests hydro-dam ...

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Four Corners: Surf story

Imagine riding a big wave on a surfboard back in the days when surfboard riding was the newest craze to hit Australia. At that time, many teenagers believed that surfing represented a whole new way of life. This Four Corners program from the early 1960s investigates the impact of the rise of the surfboard and surfing culture ...

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Magical Land of Oz: Koalas and climate change

The koala population in rural NSW has been declining over the years due to drought and heatwaves. What causes some of the temperature extremes experienced in this region? Dr Mella believes koalas normally get most of the moisture they need to stay hydrated from eucalyptus leaves. What has changed in recent years that means ...

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Four Corners: Ecological effects of bushfires

Did you know that Australia is the most flammable continent on Earth? Watch this clip to discover how bushfires impact natural ecosystems, and how the increasing global threat of bushfires may affect Australia. Australian scientists explain the ecological consequences of fire and a US expert describes his concerns for the future.

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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: 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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Weekend Magazine: Vinyl: the Australian record industry, 1963

Discover a time in Australia's past when the vinyl record industry was thriving. Today you can download your choice of music at almost any time or place. But in this clip from 1963 you will experience life before music downloads and compact discs (CDs): the age of vinyl records. These records created a teenage mass market ...

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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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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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Foreign Correspondent: Damming the free and mighty Mekong

The Mekong has been a rare thing: a largely untouched and free-flowing river. Stretching for nearly 5,000 km from the mountains of Tibet to Vietnam's Mekong Delta, it has provided a way of life for millions of people and been an important trading route between south-western China and south-eastern Asia. In this clip from ...

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Four Corners: Megafires

Are we approaching the 'age of megafires'? It might sound like something out of a sci-fi movie, but some scientists believe there is cause for concern. Watch this clip to find out how bushfires as we know them are changing. Discover why.

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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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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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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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Weekend Magazine: The Stomp, a 1960s dance craze

Imagine a dance so simple it could be learnt in minutes and so popular it became a craze. This clip from a Weekend Magazine program screened in 1963 looks at such a dance. It was called the Stomp and it was pounded out in surf clubs and council halls around Australia's coast. Watch and listen as teenagers express their ...