Adelaidean (Spring/Summer 2015 edition) | Page 18

ENVIRONMENT THE FIRE NEXT TIME BUSHFIRES ARE A SCOURGE OF AUSTRALIAN SUMMERS BUT THEY’VE ALSO CAUSED THE RISE OF AN AUSSIE ICON: THE GUM TREE. There are fossils of tree kangaroos on the Nullarbor Plain that are just 700,000 years old – so what, Professor Bob Hill wonders, happened to the trees? This is far from a question for antiquarian environmentalists – knowing how the Australian landscape responded to climate change in the past will make it easier to understand how it will respond now. And it will help us to work out what we can do to reduce the damage we’ve done, even restore the landscape to what it was before European settlement. It’s part of a renewed scholarly interest in Australian botany, paleo and present, which was at risk of sliding into a subset of zoology. “Over the years the disciplines combined and as botany was the smaller it went into decline,” Professor Hill says. “But this is turning around. “Now there’s a great research interest in Australian botany, in how our vegetation evolved in response to fire, in conservation and in how we can learn about climate change from the fossil records,” Professor Hill says. READER SURVEY WIN 1 of 5 $100 2016 Adelaide Fringe vouchers Click here! PHOTO Professor Bob Hill “Eucalypts are the ultimate fire plants – fire survivors and