In Germany, hundreds of protesters marched past the European Central Bank headquarters in Frankfurt to challenge the role the financial sector plays in climate change.
Activists are taking aim at investments worth billions in climate-damaging projects and fossil fuels such as coal, oil and gas
The demonstration was organised by the Fridays for Future movement, which Greta Thunberg is part of.
Protesters held banners with messages such as "Planet over profit," "Don't burn our future" and "Stop investing in climate killers".
Outside the Deutsche Bank twin towers, two masked protesters wearing masks burnt a large effigy of the bank's logo.
Fridays for Future want an economy that is not focused on people and resource exploitation, but on social and ecological needs.