Billboards Grow Green for Academy of Sciences

For the California Academy of Sciences, Heat/SF launched a series of outdoor executions that highlight the institution's eco-friendly design and emphasis on sustainability.

To tie in to the "green" roof over the Academy's new facility -- which actually sustains some wild animals and vegetation -- outdoor ads include a "living" bus shelter and billboard, upon which grass or other greens have been planted. See them in San Francisco. TV and digital work will also supplement the campaign.

McDonald's and Ford have also done the living billboard thing. Tell me, minions: is this America or is this Hobbiton?