Extinction rebellion protesters have now been camped on the roof of Bristol City Hall for a week.
According to the climate activists, almost 300 Bristolians die prematurely every year due to toxic pollution and they have called on the Mayor - Marvin Rees - and Bristol City Council to take action.
The five 'Rooftop Rebels' say they will not move until the Council makes pledges to deliver legally compliant air by April 2021.
On Tuesday 30 June, the protesters were joined by former Paralympian James Brown.
A former Bristol resident, the cyclist told us his daughter suffered with asthma and panic attacks because of pollution in the city:
"She couldn't leave her flat, for sometimes days on end. It was extremely distressing for her, it was extremely hard for me to observe as her Dad.
James Brown says he'll assist the 'Rooftop Rebels' throughout their stay on the Bristol City Hall roof. Credit: Simon Holliday.
"Not only did the pollution affect her physical wellbeing, but also her mental wellbeing and ... she wasn't able to work and provide for herself".
He went onto argue that the activists are refusing to back-down because their request is "reasonable".
James Brown told us his daughter's experiences motivated him to join forces with Extinction Rebellion. Image credit: Simon Holliday.
Despite having to leave Bristol City Hall due to charity commitments, the Paralympian says he will continue to support the group.
Bristol City Council declined to comment when contacted, but the city's Mayor spoke-out via Facebook Live on Wednesday 1 July.
Marvin Rees called the protest a “stunt" to get his attention, by “juvenile” protesters engaging in “privilege activism”.