'Climate change is not a debate'
Thousands of young people across the world have joined together to stand up against climate change.
Izzy is a climate activist from Bournemouth.
She says people need to start taking climate change seriously.
The 11-year-old says she has been going on strike and talking to people on the street about the climate crisis.
She says as she can't vote it is the only way she can get her point across.
Check out the video to see what drives her.