Is Earth alive?

A cell is alive. So is a leaf and so is a tree. But what about the
forest they’re a part of? Is that forest alive? And what about the
planet that forest grows on? Is Earth alive? Science writer Ferris
Jabr says: Yes. For show transcripts, go
to bit.ly/unx-transcripts For more, go
to http://vox.com/unexplainable Vox is also currently running
a series called Home Planet, which is all about celebrating Earth
in the face of climate change: http://vox.com/homeplanet And
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