His team’s Marxan software initially assisted Australia’s rezoning of the Great Barrier Reef Marine Park and is now used in more than 150 countries to support the design of marine and terrestrial reserves. He led a group of more than 400 ecologists and wildlife scientists in petitioning the Australian government to stop the destruction of native woodlands, especially in Queensland. Known as the Brigalow declaration, their efforts more than halved deforestation in Australia, reducing that nation’s greenhouse gas emissions by 10 percent for several years.  As a member of many advisory committees and boards, Dr. Possingham has been a leading voice in providing independent advice to the Australian government and the public about environmental issues. He has also birded in some of the world’s most amazing places. So, you bird enthusiasts out there should seek him out during a break to exchange notes.