From 350.org:

Here's the plan: we're asking you, and people in every country on earth, to organize an action in their community on October 24. There are no limits here--imagine bike rides, rallies, concerts, hikes, festivals, tree-plantings, protests, and more. Imagine your action linking up with thousands of others around the globe. Imagine the world waking up.

What are you and your congregation doing on October 24?  (It's a Saturday.) 350.org's section for people of faith has some great suggestions and information on what religious groups have already committed to do.