A fire that raged this week across hundreds of thousands of acres of grasslands and about-to-be harvested wheat crops, killing a farmer and three workers, points to a dangerous summer ahead in Australia, scientists and weather watchers say...The combination of record heat and very dry conditions — October was the hottest month in Australia ever after its third-driest September — is prompting some officials to predict an especially intense fire season, which started early this year...“Climate change is loading the dice when it comes to fire risk in Australia,” Lesley Hughes, a professor and researcher at the Climate Council, a publicly funded research institute, said. “El Niño adds another level of complexity.”