Can jet skis co-exist with marine life?

With news today that Victoria's Conservation Regulator is investigating reports of jet ski riders harassing dolphins at Philip Island, in this edition of The Conversation Hour we discuss just how much they disrupt marine life and what measures should be put in place to protect sea mammals.Also in this edition, we recently spoke on the program about whether the fuel crisis will see drivers shift to electric vehicles, so today we explore what this shift will mean for mechanics, and what will the future work of mechanics look like?Plus, how is social media changing how we buy and sell real estate?