Skip to main content

The context you need, when you need it

When news breaks, you need to understand what actually matters — and what to do about it. At Vox, our mission to help you make sense of the world has never been more vital. But we can’t do it on our own.

We rely on readers like you to fund our journalism. Will you support our work and become a Vox Member today?

Join now

How big was the global climate strike? 4 million people, activists estimate.

It was likely the largest climate protest in world history.

Protesters at the Global Climate Strike fill a street in Krakow, Poland.
Protesters at the Global Climate Strike fill a street in Krakow, Poland.
Students, parents, and activists at the 2019 Global Climate Strike in Krakow, Poland.
Omar Marques/SOPA Images/LightRocket via Getty Images

This story is part of Covering Climate Now, a global collaboration of more than 250 news outlets to strengthen coverage of the climate story.


Friday was a truly historic day for the potent new social movement committed to sounding a global alarm about the climate crisis. The Global Climate Strikes, inspired by Swedish climate activist Greta Thunberg, age 16, may end up being the largest mass protest for action on global warming in history.

The exact number of participants worldwide will be hard to get. But the event was truly global and astonishingly well organized: There were over 2,500 events scheduled in over 163 countries on all seven continents.

And according to 350.org, a major environmental advocacy group and a co-organizer of today’s events, more than 4 million people worldwide took part.

There were 40,000 people striking in France; 2,600 in Ukraine; 5,000 in South Africa; 10,000 in Turkey; 5,000 in Japan; 100,000 in London; 330,000 in Australia; 250,000 in NYC; and 1.4 million in Germany, 350.org told us.

(You can see photos of the strikes around the world here.)

Again, those numbers come from the event organizers so take them with a grain of salt. That said, it’s clear that Friday’s actions were enormous and spanned the globe. Kids and adults were protesting from Uganda to India, from Peru to Grenada, from Spain to Anchorage. There was even a small demonstration on the Antarctic continent. Another strike is planned for September 27.

China, the largest emitter of greenhouse gas emissions, was noticeably absent from the images of protesters shared by Thunberg and other organizers on Twitter. According to the Guardian, “No protests were authorized in China ... but Zheng Xiaowen of the China Youth Climate Action Network said Chinese youth would take action one way or another.”

“Chinese youth have their own methods,” she said. “We also pay attention to the climate and we are also thinking deeply, interacting, taking action, and so many people are very conscientious on this issue.”

But it was inspiring to see so many young people — people who may live to see a radically different world in the second half of this century — tell the grownups of the world to heed the warnings of scientists and limit devastating warming by accelerating decarbonization in the next decade. On Monday, at the UN Climate Action Summit, we’ll find out how many were listening.

And eventually, an independent tally of participants will come. Researchers are working on their own estimates of the crowd size.

In 2017, Crowd Counting Consortium was launched by Erica Chenoweth, an expert on civil resistance at Harvard, and Jeremy Pressman, a political scientist at the University of Connecticut, as a public service project to document the scope of the Women’s March.

“Documenting the women’s march in real time, we learned how important it was for people to be seen, witnessed and counted,” Chenoweth and Pressman wrote in a Washington Post article.

They are currently collecting data on the September 20 climate strikes in the US and parallel events around the world. Eventually, they’ll have estimates of the total crowd size from September 20 to share.


Listen to Today, Explained

The vast majority of your plastic isn’t being recycled. It might be time to consider lighting it on fire.

Looking for a quick way to keep up with the never-ending news cycle? Host Sean Rameswaram will guide you through the most important stories at the end of each day.

Subscribe on Apple Podcasts, Spotify, Overcast, or wherever you listen to podcasts.

See More:

More in Climate

Climate
Why the American Southeast is becoming a new hot spot for wildfiresWhy the American Southeast is becoming a new hot spot for wildfires
Climate

“Weather whiplash” is fueling blazes across Florida and the region.

By Kiley Price
Climate
The climate crisis is coming for your groceriesThe climate crisis is coming for your groceries
Climate

Extreme heat is already wiping out soy, coffee, berries, and Christmas trees. Farm animals and humans are suffering too.

By Ayurella Horn-Muller
Future Perfect
“I’m disgusted to be a human”: What to do when you hate your own species“I’m disgusted to be a human”: What to do when you hate your own species
Future Perfect

Yes, it hurts to be human right now. That’s actually the assignment.

By Sigal Samuel
Climate
Levees can no longer save New OrleansLevees can no longer save New Orleans
Climate

The city is part of “the most physically vulnerable coastline in the world.”

By Oliver Milman
Future Perfect
The old tech that could help stop the next airborne pandemicThe old tech that could help stop the next airborne pandemic
Future Perfect

Glycol vapors, explained.

By Shayna Korol
Climate
The exploding costs of fighting US wildfiresThe exploding costs of fighting US wildfires
Climate

From taxes on nicotine to hotel rooms, states are looking for ways to pay the skyrocketing bill.

By Kylie Mohr