Australia's bid to be the green hydrogen superpower

You probably know a bit about hydrogen from your science lessons at school. But you're about to hear a lot more about it, as Australia embarks on a massive push to become the world's hydrogen superpower.  The hope is the element will soon be fuelling everything from cars to passenger jets, as the world races to switch off fossil fuels.  Today, ABC business reporter Rachel Pupazzoni on how Australia became a leader in the field and why it could lead to our next investment boom.  Featured:  Rachel Pupazzoni, ABC business reporter