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Listed under:  Science  >  Environmental management  >  Air quality  >  Greenhouse gases
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Our role in ocean acidification

This is a colour video clip of marine scientist Abby Smith discussing the effects of increased levels of carbon dioxide on marine animals. Smith is a teacher and researcher at the University of Otago, New Zealand.

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Low-emission energy future

Find out about the technologies that can reduce our greenhouse-gas emissions. This resource consists of an animated video accompanied by an interactive landscape activity. The video focuses on technologies that can reduce carbon-dioxide emissions from the burning of fossil fuels, as well as renewable energy and improved ...

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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: Shining the light on a more sustainable globe

Artificial lighting methods have changed with the invention of new lighting technologies designed to be more energy efficient and to reduce the use of resources. Since electricity has been used as an energy source, incandescent and fluorescent globes and, more recently, light emitting diodes (LEDs) have been used in our ...

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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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Sciencey: Five things you need to know about climate change

Find out how carbon dioxide makes the Earth warmer, how oceans store heat and the way we can see climate history in ice. What are the consequences of changes in the global climate? What can we do as individuals and communities to stop these negative changes?

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Carbon dioxide and greenhouse gases

Have you heard of greenhouse gases? What do you think they are? (The word 'greenhouse' is a big clue!) The delicate balance of greenhouse gases has been affected by the addition of an unprecedented amount of carbon dioxide (CO2) to our atmosphere in the last 150 years. Watch this video to find out how CO2 is being added ...

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Food wastage footprint

This is an animated video about the extent of global food wastage, its short- and long-term effects and how it can be minimised. Stating that about one-third of the food produced in the world each year is lost or wasted, the video uses concrete examples to show what this means in terms of land area, water, natural habitats, ...