People across the world expressed their support for science and facts at March of Science events on Saturday. The main march was in Washington D.C., but more than 600 satellite marches took place elsewhere.

The March was first thought up in the US as a response to President Donald Trump’s critical attitude toward science. He had previously said that he does not believe in man-made climate change and attempted to influence the public communication of science and environment authorities like the Environmental Protection Agency and the National Parks Service.