Petitions make changes — big and small — almost every hour. But sometimes it takes more than one petition to really move the needle on a big issue. Sometimes change requires a movement of related petitions, each one addressing a piece of the larger cause, and a community united behind that cause.

We have been developing a new tool to make it easier to create these kinds of movements, and we are now excited to announce that anyone can start a movement on Change.org.

Last winter the Malala Fund launched our very first movement, which connects 1.6 million people who want to make 12 years of education accessible to every girl in the world.

You’ll see that three petitions in the movement have achieved victory, including one started by Nobel Peace Prize winner Malala Yousafzai that asked the Global Partnership for Education to fund global K-12 education.

That victory marks one milestone on the journey toward 12 years of education for all girls. Other petitions in the movement represent other changes that need to be made — whether it’s supporting the education of Syrian children or stopping the closure of a girls school in New Zealand.

The Malala Fund’s movement is one example of how this new tool is being used to talk about issues and make change. Other movements you may have seen already are telling the stories of people and organizations seeking justice — whether it’s in the passing of laws or clemency for harsh sentencing. They’re being used by governments to let their constituents take an active role in governing. And they’re being used by organizations and brands to further causes they care about.

See 6 movements that Are Changing the World Right Now

All of these movements unite communities of people to focus on big objectives. There are four ways that you can get involved with a movement:

1. You can start a movement. All you need is an idea to make change that requires more than one petition. Our tool will guide you through the process of setting everything up.

2. You can start a petition as part of a movement. Movement organizers can curate existing petitions, but they also need new ones. You can start a petition as part of any movement, by clicking the button under the “about” section

3. You can become a movement supporter by signing a petition. Every person that signs is added to the total of supporters at the top of the movement.

4. You can follow the movement. If you click the “follow” button at the top of the movement, you will receive email updates about the movement from its organizer in the same way that you get updates from petitions you’ve signed.

If you’re interested in starting a movement, check out our guide for tips on creating a successful movement.