, the fires burnt an estimated , destroyed over 5,900 buildings (including 2,779 homes) and killed at least 34 people. Nearly three billion terrestrial vertebrates alonethe vast majority being reptileswere affected and some endangered species were believed to be driven to extinction. At its peak, air quality dropped to hazardous levels in all southern and eastern states. The cost of dealing with the bushfires is expected to exceed the 4.4 billion of the 2009 Black Saturday fires, and tourism sector revenues fell by more than 1 billion. However, economists estimated that the Australian bushfires may cost over 103 billion in property damage and economic losses, making the bushfires Australia's costliest natural disaster to date. Nearly 80 percent of Australians were affected either directly or indirectly by the bushfires. By 7 January 2020, the smoke had moved approximately across the South Pacific Ocean to Chile and Argentina. As of 2 January 2020, NASA estimated that of CO had been emitted.