AAP: Police were called in to break up a scuffle between protesters at the Walk Against Warming in Adelaide. About half a dozen police arrived in Victoria Square just after the start of the rally, aimed at raising awareness on climate change and the environment. John Rice, organiser with the Climate Emergency Action Network, said climate change sceptics had arrived unexpectedly to disrupt the rally. One had pushed his megaphone into his face, prompting him to call …