The City of Sydney and University of Sydney have teamed up for an evening of insight and innovation with the latest edition of Raising the Bar evening talks on Tuesday 9 April. Get a taste of some of the talks from our diverse line-up of speakers: Learn about the local impacts of climate change and the transformative approach to creating a cooler Sydney. Book tickets. Hermann's Bar, Camperdown 8pm Electric flights could revolutionise air travel with zero emissions.