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Listed under:  Science  >  Environmental management
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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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Catalyst: Underground coal gasification

How are scientists using technology to get energy out of coal without having to dig it up? Find out how underground coal gasification (UCG) burns and converts the coal to gas underground. Visit UCG trial sites in Queensland and hear how UCG avoids some of the environmental effects of traditional coal mining, but may have ...

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Gardening Australia: Creating a wetland

Find out how a school uses stormwater to create a wetland habitat for native plants. Josh Byrne visits Swan Valley Anglican School to observe the growth of their vegetable garden and to help out in the creation of the wetland. Discover what plants are best for a wetland habitat and how it will increase biodiversity 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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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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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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Can We Help?: Effects of g-force on the human body

Peter Rowsthorn visits the Australian International Air Show to answer the question, 'What effect does g-force have on the human body?' Join Pete in the cockpit of a light plane for some aerobatics with pilot David Pilkington. G-force expert Dr David Newman explains the science as Pete endures up to 6 g in the aircraft.

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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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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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War on Waste: Recycling e-waste to raise money for food charities

We all know recycling is a great way to reduce waste going into landfills, but there can be other benefits too. Some social entrepreneurs are recycling e-waste, not only to keep them from going into landfills, but also to generate revenue to help fund food charities. Craig Reucassel mentions how using technology for longer ...

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Catalyst: Advances in nuclear power technology

Imagine our world if nuclear power generation could be made safer. Discover how Chinese scientists have developed a new nuclear reactor that reduces the chances of the reactor overheating to the point of meltdown. To do this the pebble bed reactor uses advances in technology to replace the traditional water-cooled system. ...

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BTN: The Moon landing

Some say landing on the moon is as one of humanity's greatest achievements. Learn about the history of the moon landing and some of the challenges faced by scientists. See actual footage of the astronauts on the moon as part of the Apollo 11 mission.

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Catalyst: Supercapacitors: new battery technology

Discover how nanotechnology is contributing to the creation of new, improved batteries that may soon be used in all our mobile phones and portable music devices - even in cars and trams. Catalyst's Tanya Ha looks at how traditional batteries produce electricity and how their efficiency may be increased by tiny devices known ...

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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: Supporting sustainable farming

Consider the vast land that is Australia. How might we, as a community, help to keep our land sustainable? Explore the ideas put forward by Professor Peter Cullen and Dr John Williams in response to the continuing drought conditions of 2003. What role could city dwellers play so that farmers could better care for the land?

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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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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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Elliot and the Surfing Scientist: Shrinking and expanding metals

Explore with the Surfing Scientist team what happens when metals are heated and cooled. Find out what happens to a metal ring when it is immersed in extremely cold liquid nitrogen. What do hinges on the Sydney Harbour Bridge have to do with all this? Find out.

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Walking on Aboriginal land

Benjamin Church works for the Royal Botanic Gardens Victoria. Watch as Ben welcomes visitors through the Welcome to Country ceremony. Why do people place leaves in the fire? What does that signify? As Ben takes his visitors through the Royal Botanic Gardens, he explains the importance of land to Aboriginal people.

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BTN: Curbing the carp population

Find out why European carp fish are called 'river rabbits' in Australia. Listen to how they came to Australia and what makes them such a pest now.Discover how a local entrepreneur is exploiting the new resource while scientists are doing their best to cap the carp population explosion.