This week a climate change protester was jailed for 15 months after she disrupted traffic on the Sydney Harbour Bridge earlier this year.

It's outraged human rights groups and the United Nations but others say it's exactly the deterrent that is needed.

Today, we discuss whether these kinds of protests are effective and if stricter laws will really discourage them.

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Sarah Maddison, Political Science professor and Director of the Australian Centre, University of Melbourne