Sydney Harbour Bridge protest: 13 arrested in climate demonstration

Greenpeace supporters abseil off bridge unfurling banners calling on political parties to declare a 'climate emergency'

Thirteen people have been arrested after environmental activists abseiled off the Sydney Harbour Bridge to demand action on climate change.

The Greenpeace supporters launched themselves from a public walkway on the western side of the structure at dawn on Tuesday, calling on the major federal political parties to declare a "climate emergency".