Canberra: Malcolm Turnbull, an urbane former investment banker who supports marriage equality and action on climate change, was sworn in as Australia's 29th prime minister on Tuesday, a day after ousting longtime rival Tony Abbott in a party room coup.
Turnbull, a Rhodes Scholar who previously led the Australian Republican Movement, was sworn in by Governor General Sir Peter Cosgrove, the representative of Britain's Queen Elizabeth, Australia's head of state.