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Looking for a way to decorate your patio wall or a patch of ground? With a little coaching and watering, grow moss into shapes such as a poem, an eco statement, or animals.

Full instructions are on Instructables.

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Eco roofs, and their more visible cousins vertical gardens, are inspiring pieces of architecture which are usually difficult to view, since getting on top of a building is often prohibited or just a hassle. The California Academy of Sciences roof, pictured above, makes it a little easier to take in the benefits and beauty of rooftop greenery. Here is an entire photo gallery devoted to eco roofs of the world, and here is a Flickr pool.

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