Tens of thousands of people gathered at Glasgow Green following a huge climate rally amid the COP26 summit.
The march, which began at Kelvingrove Park, saw the protestors bearing placards and flags, flood the city centre streets before making their way to the east end of the city.
A rally at the Green then got underway to mark the endpoint of the protest, although Greta Thunberg was not involved in this despite being tipped to address crowds.
The reasons for her not speaking have not been confirmed at this stage.
Rally organisers say they expect over 100,000 people to attend with numbers up to a quarter of a million people being cited.
Speakers, including Ugandan Activist Vanessa Namate and leaders of indigenous groups from around the world, addressed the crowds - stating that the role protestors are playing is 'vitally important' as they push the world's leaders for action on climate change.
Police Scotland has already been involved in two separate incidents, with their liaison team engaging with protesters who had stopped on the main parade route on Holland Street and St Vincent Street.
Posting on their official Twitter channel, they wrote: "A group of people has deliberately stopped on the main parade route on Holland Street and St Vincent Street which is causing congestion issues. Police are engaging with them to ensure the safety of everyone and to clear the route.
"Police officers are continuing to engage with this group and public safety remains the overarching priority."
Earlier, officers had to use bolt cutters to break up protestors on the King George V Bridge at Broomielaw with the Protest Removal Team safely removing several people after worries about public safety and the rights of the wider community.
Officers confirmed that both incidents were dealt with peacefully.
