World jump day is a collaborative attempt to get 600 million people to jump at the same time. Why you ask? They believe that it would drive the planet into a new orbit. Is that good? Who's to say, but they think so. They say it's "very likely to stop global warming, extend daytime hours, and create a more homogeneous climate".
At the time of this post, it's 64 weeks out, and they already have 121 million jumpers. You can sign up now and get a reminder before it's time to jump.
Happy jumping!
Sign up for world jump day here