Background: In 2014, this call to action, "The Global Climate Strike: Why We Can't Wait," launched the first campaign for global climate strikes. The call was written by Ben Manski and Jill Stein for the People's Climate Convergence in New York City, a part of the People's Climate March, and brought by delegates to meetings of the World Social Forum, the Global Greens, and to the COP21 UN Climate Change Conference in Paris. The Global Climate Convergence coordinated webinars and Earth Day to May Day coordinated actions to popularize the idea of the global climate strike. From 2015-2018, the two most active climate strike efforts were those in Australia, organized by Australian youth, and those led by poor people's movements in the United States.