Dr Luke Nothdurft is a marine geoscientist based at the Queensland University of Technology. Luke’s research focuses on changes in shallow marine carbonate skeletons and sediment. Using a combination of geological and biological field data and samples, Luke investigates problems around climate change in tropical marine environments over a range of time scales with laboratory-based geochemical and microscopic analysis. He has 20 years of experience working on the Great Barrier Reef with current projects on Halimeda bioherms, the transformation of fossil coral and algae into limestone and attachment of live corals to reef substrates.