Street Trees

Trees are an increasingly important part of the urban infrastructure. However, a lack a awareness about how to plant and nurture large trees in urban environments dooms many trees to lackluster performance and a short life.

A new online tool uses the power of crowdsourcing to "map, inventory, and preserve the Philadelphia urban forest."

Hong Kong's oldest living resident, the banyan tree, once lined entire streets in the city and provided an iconic presence that many enjoyed and many felt classified as a nuisance. Now, due to urban expansion, only a cluster of twenty trees remain.

Everyone wants street trees, but roots can tear up sidewalks and cause pedestrians to trip. John Olson has the infrastructure solution.

With communities balking at the purported ugliness of windtowers and solar panels, a Dutch company proposes using nature's own designs.

A new zoning requirement passed by the New York City Planning Commission will require all new developments to plant trees along the street.