Before sunrise, three activists were found abseiling from the bridge holding placards which read "100% Renewables" while on the ground, the activists were accompanied by a group of people who have been affected by disasters caused by climate change, reports Efe news.
"Climate damage is happening right now. Australia is facing a climate emergency right now. Our political leaders must listen to those already affected by climate disaster and act," Greenpeace Australia Pacific CEO, David Ritter, said in a statement.
"Burning coal is the number one cause of climate change in Australia - but politicians from both major parties have no plan for making coal history, even though they know it puts our health, our homes and our families at risk."
The protesters included residents of the city of Townsville, which at the beginning of the year was affected by the worst floods in decades.
The New South Wales Police said that it had arrested 13 people, including the three professional climbers who were abseiling from the bridge in a sea and land operation that lasted more than three hours.
Climate change is one of the main issues of debate in the upcoming federal elections in Australia on Saturday.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)