Attenbrow, ValRobertson, GailHiscock, Peter2015-12-100305-4403http://hdl.handle.net/1885/55314The timing of the introduction, proliferation and decline of backed artefacts in Australia has been much debated. In south-eastern Australia, after initially appearing at least 8500 years ago, backed artefacts greatly increased in number between 4000 andKeywords: archaeological evidence; artifact; climate change; climate conditions; El Nino-Southern Oscillation; Holocene; paleoclimate; Australasia; Australia; New South Wales; Sydney Basin Backed artefacts; Climate change; El Niño; ENSO; Microliths; Residues; Use-wear200910.1016/j.jas.2009.08.0182016-02-24