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Dear Trent,

This is a follow-up to my previous email with a specific story idea to kick off a discussion of what each of us can do to address global climate change with plants and the resources available to urban dwellers. We don't have to wait for politicians to come to their senses and craft a socially just international treaty, although that is necessary, too. Collectively, through private actions related to what we eat and how it is produced, we all can begin immediate to mitigate global climate change.

Every urban dweller, whether living in a dorm, home or apartment, can plant a special garden out of found materials: a keyhole garden. Keyhole gardens are intensively cultivated microgardens that are designed to feed families healthy, local foods; withstand temperature extremes; be built on a lawn, carport or parking lot; conserve water; don't require land ownership; and create compost for soil management and restoration. The design makes gardening accessible to children, the elderly and the disabled. With a keyhole garden, every person can take responsibility for their share of carbon banking and the global nitrogen cycle.

The ideas of keyhole gardening and permaculture fit together, and could be promoted much like Victory Gardens were promoted during WWII. Only this time, the war is against human-driven climate change.

Keyhole gardens: A great little video made in Lesotho, showing how a group of schoolchildren made a keyhole garden. The charity Send a Cow showed them how to

Permaculture: http://www.permacultureinterna...

Found materials that can be used to build keyhole gardens: cement chunks, milk cartons filled with sand, rocks, lumber scraps.

Besides David Holmgren, an interesting and articulate person to interview about the value of urban gardening would be the editor-in-chief of the Earth Island Journal, Jason Mark (

Best, Kathryn Devereaux