A large potted tree outside your door, a bush in a barrel on the corner by the utility pole. Carry California poppy or other wildflower seeds and distribute as needed. They take care of themselves quite well. San Francisco, for example, needs 9,000 more trees just to begin to cope with the petro-pollution.
Street trees are optimal.
If you own your home and don't have a street tree, plant one. If you're a renter, talk to your landlord about getting a street tree outside your building. You may be the first on your block to tub a shrub outside your door, but you won't be the only one for very long. Let me know what you think about my page. Send mail by clicking here .