Thousands of school children in the UK are currently skipping class in favour of marching the streets in a call for world leaders to act on climate change.

Inspired by Swedish teen activist Greta Thunberg, who organised her own month-long strike outside the Swedish parliament to raise awareness of climate change, kids are stepping out in 60 locations across the United Kingdom, according to organisers Youth Strike 4 Climate.

The mass walkout was condemned by some politicians and celebrated by others, but the kids sure seem to mean business.

As always when Brits take to the streets in protest, the signs are pretty glorious. Here's a roundup of some of the most memorable:

Pupils from Methodist College Belfast at a climate change protest outside Belfast City Hall. (Photo by Brian Lawless/PA Images via Getty Images) Image: PA Images via Getty Images

MANCHESTER - FEBRUARY 15: (Photo by Christopher Furlong/Getty Images) Image: Getty Images

MANCHESTER, ENGLAND - FEBRUARY 15: (Photo by Christopher Furlong/Getty Images) Image: Getty Images

GLASGOW, UNITED KINGDOM - FEBRUARY 15 (Photo by Jeff J Mitchell/Getty Images) Image: Getty Images

GLASGOW, UNITED KINGDOM - FEBRUARY 15 (Photo by Jeff J Mitchell/Getty Images) Image: Getty Images

GLASGOW, UNITED KINGDOM - FEBRUARY 15 (Photo by Jeff J Mitchell/Getty Images) Image: Getty Images

GLASGOW, SCOTLAND - FEBRUARY 15m(Photo by Jeff J Mitchell/Getty Images) Image: Getty Images

MANCHESTER - FEBRUARY 15(Photo by Christopher Furlong/Getty Images) Image: Getty Images

Power to ya, kiddos.