For the past year, hundreds of schoolchildren across Bristol have followed in the footsteps of teenage activist Greta Thunberg.
Among them is 10-year-old Lydia Chesterman, who has made it her mission to raise awareness of the climate crisis and urge others to make small but impactful changes to their lives.
Like many in her generation, the Knowle schoolgirl is fearful for the future and grimly aware society needs to take action as soon as possible to avoid catastrophe.
In a letter to Bristol Live, she said she has made a number of changes in her own life including cutting down on dairy and meat products, reducing single-use plastic, reducing her iPad time and spreading the word of the climate crisis to others.
Describing the moment she decided to become an activist, Lydia said: "My friends were talking about climate change and I was horrified when I first heard about it.
"We're always hearing about it on the news and from teachers too. The planet is changing but not in a good way.
"It's not fair on the animals - they haven't done anything wrong and they're being killed for it."
She says she takes inspiration from 17-year-old activist Greta Thunberg, who started the school strike for climate movement after staging a protest outside the parliament building in Sweden.
The movement is now international and has inspired students in cities across the world, with several marches taking place in Bristol nearly every month last year.
Lydia previously took part in the group's day of action in September along with dozens of other pupils at Hillcrest Primary School.
"Greta Thunberg is my greatest inspiration," she continued.
"It's crazy to think someone around my age is famous just because she stood outside Swedish parliament with a sign.
"She thought about what she believed in and protested for it.
"It just shows you're never too young or old to make a difference."
Despite the climate crisis becoming more a pressing issue than ever before, Lydia added many people her age are worried about the future.
"We talk about how scary it is for some of us," she said.
"Not enough is being done. The Government needs to act now before it's too late.
"We've almost got to the stage where it's irreversible."
While Bristol City Council declared a climate emergency in 2018, there are still many individuals and groups who are sceptical of the climate crisis and claim the science is "not yet settled".
One such group is the Global Warming Policy Foundation (GWPF), led by Bristol Port co-owner Terence Mordaunt.
Asked what she would say to climate change sceptics, Lydia said: "I'd tell them to listen to the news and see what climate change is doing to the planet.
'We're only children'
"Haven't they noticed the summers have been getting hotter and our flowers have been blooming earlier?
"It's not just humans affected - it's plants and animals too."
She went on to say spreading the word and making small changes could collectively make a massive difference.
"We're only children," she said. "We can't vote or make big decisions. We can't do much at the moment but we don't have to do lots to make a big difference.
"We try to make small actions in our everyday lifes.
"We should try to spread the word and talk to anyone about the small things they can do to help."
