What planting 2 trillion trees could do for Earth | Bill Liao

Aussie entrepreneur and environmental diplomat Bill Liao is set on finding solutions that help the environment. Alongside a group of ecologists, he founded the WeForest movement, which encourages companies to plant trees. Listen in to how they plan to re-green the planet.
TEDArchive presents previously unpublished talks from TED conferences.
Enjoy this unedited talk by Bill Liao.
Filmed at TED 2011.
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