7 Billion

You've probably seen some animated videos trying to explain the significance of recent demographic and social trends (here, here and here, for instance).

Today we have one more explaining the significance of the fact that the planet is populated by 7 billion of us. The clip is beautifully done, and although it seems that its main objective is to clarify things and put them in perspective, it wouldn't be complete without touching on a few of the social and environmental implications of such a realization.

And if any of this is making you wonder about the ethics of helping those in need, philosopher Peter Singer can help organize your thoughts in just 3 minutes.
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