Australian: TONY Abbott has urged primary school students to be sceptical about man-made climate change, saying it was warmer during the time of Julius Caesar and Jesus than it is now. The Opposition Leader, wrapping up a two-day visit to South Australia yesterday, told Year 5 and 6 students that climate change had always happened and, historically, humans had not been responsible. Climate Change Minister Penny Wong said it was “irresponsible and disappointing” for the Liberal leader to …