Australian climate change activists were keen to make their mark on Sunday, even 918 metres above sea level.
A banner reading "Climate Action Now", fixed to the Three Sisters' central peak in the Blue Mountains, summed up the demands of thousands who marched in events across the country.
The group People's Climate organised rallies in 150 countries ahead of next week's one-day climate change summit of world leaders at the United Nations in New York.
From Broome to Hobart, marchers called for greater cuts to emissions.
Foreign Affairs Minister Julie Bishop has rejected calls from the UN to pledge stricter reduction targets in New York.
Greens leader Christine Milne told a Melbourne rally: "We are on a trajectory for 4 degrees of warming which is an unliveable planet and we won't stand for it."
Blue Mountains, Australia for Climate Action @350 @350Australia #PeoplesClimate pic.twitter.com/5E2vEOMCqr
— Joey Clarke (@joeyrclarke) September 21, 2014
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@kellydent: Samoan dance troupe at
#PeoplesClimate rally Melbourne. The Pacific will be affected first and worst
pic.twitter.com/jPWj0iDm0D — 350 dot org (@350)
September 21, 2014
A great shot of what we're all rallying to protect in Sydney
#PeoplesClimate
pic.twitter.com/ldqCHAOdaB — GetUp! (@GetUp)
September 21, 2014
A sea of people in Brisbane calling for climate action to protect the Great Barrier Reef
#PeoplesClimate
pic.twitter.com/jWiSqNNxck — 350 dot org (@350)
September 21, 2014