Greta Thunberg: Two years of climate change campaigning
It's been exactly two years since Greta Thunberg first staged a protest outside the Swedish parliament.
Since then, she's inspired young people right across the world to join her protests demanding people do more to protect the planet.
Her passionate speeches and calling out of world leaders has won her lots of fans including some big celebrities, and she's even been able to speak to people like former US President Barack Obama and the Pope about the importance of looking after the Earth.
It's clear Greta's made a big impact, but what does this mean for the fight against climate change?