Climate

Introduction and materials
The climate unit will assist students to discover the enormous influence and importance of Antarctica and the Southern Ocean in global processes.
Greenhouse effect and climate change
Research the greenhouse effect and climate change, especially the consequences of increased greenhouse gases.
Annual ice cycle
In winter Antarctica grows in size as the surrounding sea freezes, making it the world's largest seasonal event!
Ice cores
Snow in Antarctica doesn't melt but is buried and compressed into ice by later snowfalls.
Melting ice, rising sea
Investigate the effect of climate change on the Antarctic icecap. Students can explore what could happen to coastal cities if sea levels rose by 50 metres.
Ozone depletion
Molecules of ozone, a form of oxygen, formed a thin layer in the earth's outer atmosphere hundreds of millions of years ago. This layer has protected all forms of life from the potentially fatal effects of ultra-violet radiation from the sun.
Before the ice
Fossil evidence indicates that the Antarctic continent was a much warmer place before the cooling Circumpolar Current isolated the continent from its neighbouring land masses. The sea level was much higher, the polar ice cap much smaller, and parts of the continent contained vegetation similar to today's endemic Tasmanian flora.
This page was last modified on July 2, 2014.