International Day of Climate Action

350.org is calling on people around the world to organize an action on October 24 incorporating the number 350 at an iconic place in their community, and then upload a photo of their event to the 350.org website.

Find an action near you »

They'll collect these images from around the world and, with your help, deliver them to the media and world leaders. Together, we can show our world and it's decision-makers just how big, beautiful, and unified the climate movement really is.

350.org is an international campaign dedicated to building a movement to unite the world around solutions to the climate crisis--the solutions that science and justice demand.

The focus is on the number 350--as in parts per million, the level scientists have identified as the safe upper limit for CO2 in our atmosphere. But 350 is more than a number--it's a symbol of where we need to head as a planet.

To tackle climate change we need to move quickly, and we need to act in unison—and 2009 will be an absolutely crucial year.  This December, world leaders will meet in Copenhagen, Denmark to craft a new global treaty on cutting emissions. The problem is, the treaty currently on the table doesn't meet the severity of the climate crisis—it doesn't pass the 350 test.