They've also created an online petition calling on the government to take urgent measures to protect vulnerable communities from the effects of the heatwave.
The UK heatwave has been described as "apocalyptic" by young climate activists. They say that the extreme weather is a sign of things to come and that urgent action is needed to tackle the climate crisis. The activists are calling on the government to do more to reduce emissions and to support renewable energy. They say that the heatwave is a wake-up call for everyone and that we must act now to avoid a future of extreme weather and devastating impacts on our planet.
"It's apocalyptic," says climate activist Greta Thunberg, who has become the face of a global youth movement calling for action on climate change. "We are in the middle of a climate and ecological emergency, and yet we continue to act as if everything is business as usual."
Thunberg is urging adults to take the climate crisis seriously and take action to reduce greenhouse gas emissions. "We have to start listening to the science and act now," she says.
Thunberg has become famous for her blunt speeches and her insistence that world leaders take the climate crisis seriously. She has inspired a wave of young people to take action on the issue, with school students across the world skipping school to protest, and has even been nominated for a Nobel Peace Prize.
Other young activists are also speaking out about the need for urgent action. "The science is clear: we have to act now to avoid catastrophic climate change," says 16-year-old Alexandria Villasenor.
"Every day that we delay is another day that we're jeopardising the future of our planet," adds 17-year-old Isabelle Axelsson.
With the UK heatwave serving as a stark reminder of the dangers of climate change, these young activists are determined to make their voices heard and force adults to take action.