Scott Morrison backs Trump in US-China trade dispute. Justin Trudeau facing brownface backlash as Canadian election looms. 'Bring plans, not speeches': World leaders gather for UN climate summit. Trump defends Ukraine phone call — World News with Matt Bevan. Finance with Michael Janda. Sport with Warwick Hadfield. Countries urged to act at UN climate summit. Politics with Michelle Grattan. Scott Morrison announces $150m support for Trump's mission to Mars. Govt faces resistance over plans to scrap captioned phone service. Helping school students learn about Indigenous culture and history. Double J: The Beatles. Flavoured e-cigarettes kill lung cells even without nicotine: research. Health Report with James Bullen.