A Journey through Climate History. TipsNTricksTipsheet_11-20-10.pdf (application/pdf Object) Vital Signs of the Planet. JPL Climate Time Machine. Climate_change_poster.pdf (application/pdf Object) Climate Change – ABC Environment. Four Corners - 04/08/2008: Tipping Point. Reporter: Marian Wilkinson Broadcast: 04/08/2008 While Australians argue about when or whether to confront global warming, the top of the globe is melting away.
The Arctic sea ice – sprawled across an area roughly the size of Australia - is in retreat. Scientists now fear that in less than 25 years from now, for the first time in human existence, there will be no sea ice in the North Pole in parts of the summer. These scientists are scrambling to model and measure the pace of the melt and to comprehend the enormity of the consequences – not just for the immediate ecosystem of polar bears and plankton, but for the world’s weather and its ability to feed itself. The big Arctic melt - smh.com.au.