Do we need to get tougher on dog owners?

We often hear about cat curfews and importance of keeping cats indoors for the damage they do to native wildlife -but have dogs been going a bit under the radar? Do they do just as much environmental damage? In this edition of The Conversation Hour we explore whether we need stronger laws about where dogs can and can't go.Also in this edition of The Conversation Hour, how can we make aged care settings more homely, new research from Australian scientists signal abrupt changes in Antarctica plus, do you remember the Reverse Garage shop?