Schoolchildren around the United Kingdom have been displaying home-made placards during the Youth Strike 4 Climate action.
The protests, which took place in London and Belfast, amongst other locations, saw students demand the Government declare a climate emergency and take active steps to tackle the problem.
Their message was largely conveyed via placards and signs – here are 12 of the most powerful from the thousands of protesters who took part.
1. Are you fracking kidding me?!(Ben Birchall/PA)2. I speak for the trees, for the trees have no tongues(Ben Birchall/PA)3. Can we fix it? Yes we can(Ben Birchall/PA)4. No planet B(@aliceplayingout)5. Sea levels are rising, so are we(Stefan Rousseau/PA)6. We are the first generation to feel the effects of climate change and we are the last that can do anything about it!(Stefan Rousseau/PA)7. We can’t drink oil, we can’t breathe money(Stefan Rousseau/PA)8. Sorry I can’t tidy my bedroom, I have to save the planet(David Young/PA)9. Global warming. Oh no(@Lydia_Guthrie)10. Learn to change or learn to swim(Nick Ansell/PA)11. You say you love your children but you are destroying their future(Danny Lawson/PA)12. Respect existence or expect resistance(Nick Ansell/PA)Read more about the Youth Strike 4 Climate campaign here.Youth Strike 4 Climate wasn't the only environmental protest taking place over the past few days - find out about the protestors taking on London Fashion week here.