[Editor’s note: The Innovations Lab is not affiliated with 350.org.]
From the 350.org website:
With over 4,000 languages spoken around the world, it’s probably not with a bunch of words. We did our best to boil down the science of global warming and vision of the 350 Campaign in 90 seconds–and with no words.
I found this to be a very effective, visual way to make a point in 90 seconds.