Urban rat populations are booming across the world and the Australian city is no exception. Is the solution pesticide, conceding defeat – or more rats?Nathaly Haeren has seen patios in Sydney collapse because brown rats have tunnelled under and created sinkholes. She’s been electrocuted in the roof of a house after they chewed through air conditioning wiring. She’s even visited a hairdresser where they’d gnawed a circle through double brick.More recently, Haeren has started seeing rats standing in the street in the middle of the day, “oblivious” and unbothered – like they just don’t care. Continue reading...