The International Climate Strike was targeted to and organized by young people, and many high schoolers skipped school to attend the event.

Some skipped class and work on Friday to protest in the International Climate Strike, helping to bring attention to the fact that climate change is a very real issue that needs to be addressed.

A young woman holds a sign stating, “Think globally, act locally,” as protestors leave the demonstration.

The strike was an opportunity for many to express their want to protect the planet.

Police used bicycles to form a barricade to keep protestors from flowing out into oncoming traffic.

A woman’s sign reads “Take care of the Earth to have a future. (From Italy.)”

Some protesters used their signs to call attention to specific people they see as responsible for the inaction against climate change including, pictured above, a cut-out of Lindsey Graham drawn with oil coming out of his eyes and nose.

In addition to individual protesters, some organizations were represented at the September march, including the independent environmental organization Greenpeace.