Australian Broadcasting Corporation: LEIGH SALES, PRESENTER: The latest global warming outlook paints a grim picture for Australia - a future of extreme weather, heatwaves and rising seas. The Intergovernmental Panel on Climate Change has reaffirmed that humans cause global warming and that temperatures are on the way up. As Hayden Cooper reports, the release has renewed pressure on the Government to reconsider its greenhouse targets. HAYDEN COOPER, REPORTER: It's official: the mercury is rising, the oceans are changing and this...