Mexico City, Mexico

This past Saturday, October 24th, marked the International Day of Climate Action. With over 5200 events organized around the world in 181 different countries, people gathered to call for strong action and bold leadership on the climate crisis...

At their respective events on Saturday, people were encouraged to gather for a large group photo and highlight the number 350. Why 350? Scientists say that is the safe upper limit for carbon dioxide in the atmosphere. Over 15,000 photos have already been submitted to

Were you at any of these events? Tell us about it!

Photos via