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Listed under:  Science  >  Life  >  Ecosystems
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Dam threatens ancient lungfish

Explore the issues around the construction of the Traveston Dam in Queensland with Professor Jean Joss and former Queensland Premier Peter Beattie. In this 2006 news report they outline arguments for and against the construction of the dam and how it would affect one of the few remaining homes of a 150-million- year-old ...

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Landline: Developing bush tucker into a seed crop

Which native plant might provide a ready-made crop that could be used as a very nutritious food source? Meet two South Australian growers who are investigating just such a native crop. Find out more about the seed crop that does not require significant amounts of water or fertiliser and has a long history of use by Indigenous ...

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Kids in the Garden, Ep 6: Why plants make fruit

Fruits come in all shapes and colours. Have you ever wondered why plants make them? Discover an amazing variety of fruits. Learn the secret of these little plant packages and the treasures they protect.

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Growing an organic edible garden

Find out about the roles that earthworms and other animals play in a sustainable organic garden. View this clip called 'Great pizzas', created by young reporters from Willunga Primary School, South Australia. The clip was developed as part of the ABC Splash Live 'Making the news!' project, which featured local sustainability ...

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Foreign Correspondent: Sustainable tourism

The Yucatán Peninsula in south-eastern Mexico is a popular tourist destination. This clip focuses on examples of sustainable tourism - tourism that aims to have a low environmental impact. View Tulum, a town under threat of being developed similarly to Cancún, a major tourist resort destination.

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Four Corners: Increasing threat of megafires

Many scientists believe we are already experiencing megafires and that they will continue to increase in the future. In this clip you will hear from Australian scientists at the forefront of fire research. Discover what they have to say about the causes, projections, and consequences of an increased megafire threat.

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Catalyst: Geoengineering - a solution to climate change?

What is geoengineering, and how is it being investigated by scientists as a means of combating climate change? Learn about some climate control techniques that could slow down or even reverse the effects of global warming. Hear an atmospheric physicist explain the pros and cons of geoengineering techniques.

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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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The Merri Creek Project

Find out about the native plants and animals found at a local creek, and about introduced plants (weeds) that are impacting this natural habitat. View this clip called 'The Merri Creek Project', created by young reporters from North Fitzroy Primary School, Victoria. The clip was developed as part of the ABC Splash Live ...

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Kids in the Garden, Ep 9: Vegetable gardens

Have you ever grown vegetables? In this clip you will discover many things about vegies and how they grow. Presenter Nick Hardcastle will even show you how to make a vegetable garden in a box. Find out which vegetable is actually a flower, which are the best seasons for planting and picking, and how deep to bury seeds.

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Catalyst: Coorong salinity

Imagine the mighty Murray River as it flows through South Australia and reaches the sea. Explore the consequences of drought and human activity while listening to Graham Phillips describe the effects of the Coorong's increasing salinity and the the associated threat to Adelaide's supply of fresh water.

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ABC News: Dr Karl vs the mysterious giant squid

Do you believe in the legendary sea monster called the Kraken? It's said to have gigantic tentacles and to lurk in the deep ocean. In this clip, Dr Karl talks about some of the extraordinary features of a real deep-sea creature - the giant squid. Watch this clip to find out about it and see some footage of this amazing creature.

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Catalyst: Chemical pollutants toxic to whales

Explore how chemical pollutants affect the Antarctic food web. A scientist shows that baleen whales are consuming Antarctic krill contaminated by accumulated residues of persistent organic pollutants (POPs) from pesticides and industrial chemicals. Find out why these pollutants are concentrated at the Earth's polar regions.

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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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Catalyst: Penguin wave better than a group hug!

Emperor penguins form a big, tightly packed huddle to keep warm in Antarctica, the coldest and windiest continent on Earth. But how do the ones on the outside of the huddle keep warm? Find out about a clever way of ensuring that no penguin is left out in the cold.

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Gardening Australia: Planting an orchard

Imagine eating oranges straight from a tree in your school orchard. Watch this clip to see how the Swan Valley Anglican Community School began creating their own orchard complete with fruit-bearing orange trees. Josh Byrne explains how to position an orchard, prepare the soil and select suitable plants.

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Restoring a native creek habitat

Discover how a primary school is working with local environmental groups to clean up the local creek and promote the return of native animals. View this clip called 'A fishy story!', created by young reporters from Willunga Primary School, South Australia. The clip was developed as part of the ABC Splash Live 'Making the ...

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Dyeing with red cabbage!

Many natural products, such as red cabbage and turmeric, can be used as a natural source of colour to dye fibres. Watch the dyeing demonstration in this clip to see how. Discover the chemistry of natural dyes, including the bonding properties of different pigments and how acid-base reactions can alter the colour of pH-sensitive ...

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Why do mosquito bites itch?

What sounds do mosquitoes makes, and can you find out why those irritating little mosquito bites itch so much? Why do we need mosquitoes? Where do they fit in an ecosystem?

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Engineering clean rivers

Figuring out how to clean up contaminated rivers is a big challenge. It's also tricky to work out where the most contaminated parts of a river system are and whether its fish are safe to eat. Watch this video and learn how engineering has helped to solve these problems. Why do you think engineers looked to the bottom of ...