BRISBANE, AUSTRALIA - NOVEMBER 15:  In this handout photo provided by the G20 Australia, Australia's Prime Minister Tony Abbott and United States' President Barack Obama meet Jimbelung the koala before the start of the first G20 meeting on November 15, 2014 in Brisbane, Australia. World leaders have gathered in Brisbane for the annual G20 Summit and are expected to discuss economic growth, free trade and climate change as well as pressing issues including the situation in Ukraine and the Ebola crisis.  (Photo by Andrew Taylor/G20 Australia via Getty Images)