Bushfires are spreading in Grampians National Park in the state of Victoria, as a heatwave sweeps through southeast Australia.<br/> <br />The blaze, sparked by lightning, covers more than 1,000 hectares and is threatening rural areas.<br/> <br />Residents have been told to leave the area immediately.<br/> <br />More than 200 firefighters are trying to kill the blaze but the terrain is very difficult to access.<br/> <br />Parts of the southeast are sweltering, with temperatures peaking at 42 degrees Celsius in Melbourne. Some had to be checked by paramedics.<br/> <br />Even animals at Adelaide Zoo were given cold treats.<br/> <br />The group Climate Council warns in a report that Australia has only begun to feel the impact of climate change.<br/> <br />(SOUNDBITE) (English) EXECUTIVE DIRECTOR AUSTRALIAN UNIVERSITY CLIMATE CHANGE INSTITUTE, PROFESSOR WILL STEFAN SAYING:<br/> <br />"This is part of a longer term upwards trend and we know the physics of why this occurring. It's simply because we're stacking more heat in the lowe
