Global Climate Strike - Update 3

Update 3:  Follow along on The Guardian.

Update 2:

Sidney, Australia

Hamburg, Germany

Update 1:  In New York City, 1.1 million pupils will be allowed to skip school on Friday after the city announced it would not penalize public school students joining the strikes, but made it clear that the students did need parental consent.

New York Mayor Bill de Blasio tweeted he supported the move: "New York City stands with our young people. They're our conscience."

Crowds will rally in downtown Manhattan at 12 p.m. ET, where a roster of young climate activists will speak, including Greta Thunberg, who sailed to New York to attend the UN Climate Action Summit.

What's happening?

Young people are asking others all over the world to join them in global climate strikes starting today. More events will take place before another big day of action September 27.

Students across the US and beyond are planning to walk out of class to call attention to the issue.

But everyone is invited to express solidarity and "disrupt business as usual," organizers say.

"Together, we will sound the alarm and show our politicians that business as usual is no longer an option," they say. "The climate crisis won't wait, so neither will we."