AceShowbiz -

Thousands of activists, scientists, students and other groups including Hollywood stars joined People's Climate March in New York on Sunday, September 21 to urge world leaders to take more actions in regards to climate change. Stars who joined the march over the weekend included Leonardo DiCaprio, Mark Ruffalo, Sting, Edward Norton and "The Hobbit: The Desolation of Smaug" star Evangeline Lilly.

"I'm here primarily for my children. I want to see the leaders of the world hear the will of the people and begin to implement 100|percent| renewable energy for 100|percent| of the people," Ruffalo said, as reported by NY Daily News. The actor additionally took to Twitter to share the messages and photos from the march. "Lastly... Thank You to the city of New York for creating a safe ace for us to express our hopes for a better tomorrow. #PeopleClimateMarch," he said in a post.

The march was organized by 350.org. It started at 11:30 A.M. at Central Park West, Sixth Ave. and finished on 34th St. and 11th Ave. New York City Mayor Bill de Blasio, Al Gore and U.N. Secretary General Ban Ki-moon also joined the crowd. "Summits sometimes spark great change, rallies, protests sometimes spark great change. Sometimes they don't. Our mission is to make this a decisive moment and a turning point moment and I felt today that I was seeing history starting to be made," De Blasio said.

The massive event was held ahead of the United Nations climate change summit on Tuesday. President Barack Obama is also scheduled to attend the event alongside more than 120 world leaders to discuss environmental issues.

@LeoDiCaprio @MarkRuffalo go 100% clean energy https://t.co/ck3IL4PKYq pic.twitter.com/6tEFEUeFS4

— marco krapels (@KrapelsMarco) September 21, 2014