For 20 years the world has managed to do very little about the greatest problem it’s ever faced. In three days time, you can help change that–and if you step up you’re going to have a lot of company!

It looks like the International Day of Climate Action this Saturday October 24th will be the single most widespread day of political action the planet has ever seen–we’re closing in on 170 nations, and more than 4000 rallies and events.

There will be climate events from the bottom of the Great Barrier Reef to the summit of Mount Everest.  At each event — at rallies and parties and deep-sea dives — people will take a big photo that somehow depicts the number 350.  Our crew at 350.org will be taking these thousands of photos, projecting them on the giant screens in New York’s Times Square, and delivering them directly to hundreds of world leaders and politicians in the coming weeks.

There’s almost certainly an event happening near you–if you’re not sure what, this link will let you find out quickly and easily:

View Actions at 350.org

By Bill McKibben

Superheroes indeed! I found them all over South Africa, from Witwatersrand University in Johannesburg to the botanical gardens of Cape Town. This is a country, obviously, that knows a little bit about political movements, so it’s not entirely surprising that people are coming up with dramatic and creative actions: a mass climb of the iconic Table Mountain that juts out above the confluence of the Indian and Atlantic Oceans in Capetown, or simultaneous bike rides in the three main cities, or — the list is long.

I ate breakfast with bishops and other clerics; lunch with biologists; dinner with journalists. South Africa is incredibly diverse and beautiful, which means it will suffer from all the various forms of trouble that climate change brings — drought on the desert edges that now support agriculture, for instance. And because it’s a developing country with an enormous first-world population, it has a real mix of causes and consequences. But more to the point, there seems to be a surplus of people ready to go to work, on Oct. 24 and in the months thereafter. This place has worked miracles before — and everyone we talked to pointed out that it the international movement against apartheid helped pressure the country to change. That’s the kind of pressure we need now!