Urban Greening Organizations

• Friends of the Urban Forest
• Tree People
• Trees New York 
• Chicago Trees Initiative
• Trees for Cities
  
• The Green Belt Movement
• The Billion Tree Campaign
• Verde
• Project for Public Spaces
• Better! Cities and Towns
• 8-80 Cities
• Centre for Livable Cities
• Nature in the City
• This Big City
• Power in Dirt
• ACTrees
• San Diego County Trees
• Casey Trees
• BiophilicCities
  

Urban Environment Blogs/Columns

• The Nature of Cities
• Urban Green Council
• Sustainable Cities
• Environmental and Urban Economics
• Jay Walljasper

Insightful Research

• How Trees Calm Us Down
• Heat Island Mitigation
• Why You Should Care About Biodiversity
• The Potential of Urban Forestry in Developing Countries
• Unasylva - No. 155 - Urban forestry: Cities, trees and people
• Opposition to Protecting/Reintroducing Native Urban Vegetation
• Towards a monitoring method and a number of multifaceted and hierarchical biodiversity indicators for urban and suburban parks

A cute old house, surrounded by beautiful gardens, in the southeast of Berlin.

Urban Biodiversity Websites

• Garden for Wildlife - National Wildlife Federation
• Center for Biological Diversity

Green Urban Transport

• Transportation Alternatives

City Livability Rankings

• Mercer quality of living and eco rankings

Vegetative Architecture

• Urban Forest:  Chongqing, China
• Aqua Building:  Chicago, USA
• Geotectura: Israel

Inspiring Blogs

• Lisa Maguire Fiction