For an experience that can be alternately savage and serene, plunge into the aquamarine waters of Shark Bay, Western Australia.
As Australia and much of the world wrestles with hotter weather and a dwindling water supply, mass starvation on a global scale is on the cards if we can't find ways to improve crop resilience.
It has long been held true that Australia has a 'dead heart' but now ecologist Dr Steve Morton declares war on this cherished belief.
Following on from our extremely popular Salinity compilation in 1999, this update continues the debate about salinity and its devastating impact on the Australian environment.
A Special Schools Compile
Salinity has been called the biggest environmental threat to Australia in the 21st century.
Australia faces a population explosion of 60 per cent or more over the next four decades.
For the first time in 35 years Lake Eyre in Central Australia is filled with life giving water.
Marine biologist Alastair Birtles has made hundreds of dives on the Great Barrier Reef.
A visually stunning story of our planet from birth to death and the influence of the Sun and Moon on all living things.