Dickson Despommier says that the goal of cities today should be to be a "closed loop" ecosystem, where everything that is needed to support the city - energy, food, etc. - is contained within its borders.
Despommier looks to the natural world as a model for urban growth management:
"I would encourage all city planners and developers to take a long, hard look into the ways in which ecosystems behave. It is the model for how we should be handling things like water management, energy utilization, and the recycling of waste into usable resources. In an ecosystem, assemblages of plants and animals are linked together by a common thread: the sharing of nutrients, the transfer of energy from sunlight to plants and then to animals, and the recycling of all the elements needed to ensure the survival of the next generation of those living within the boundaries of that geographically defined area."
FULL STORY: Cities alive!

What ‘The Brutalist’ Teaches Us About Modern Cities
How architecture and urban landscapes reflect the trauma and dysfunction of the post-war experience.

‘Complete Streets’ Webpage Deleted in Federal Purge
Basic resources and information on building bike lanes and sidewalks, formerly housed on the government’s Complete Streets website, are now gone.

San Diego to Rescind Multi-Unit ADU Rule
The city wants to close a loophole that allowed developers to build apartment buildings on single-family lots as ADUs.

U.S. Miles Driven Rose by 1 Percent in 2024
Americans drove a total of 3.279 trillion miles in 2024, but per capita VMT stayed the same.

Seattle Recorded Zero Bike Deaths in 2024, per Early Data
The city halved the number of pedestrian deaths compared to 2021.

Study: London ULEZ Rapidly Cleaning up Air Pollution
Expanding the city’s ultra low-emission zone has resulted in dramatic drops in particle emissions in inner and outer London.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
City of Albany
Harvard GSD Executive Education
UCLA Lewis Center for Regional Policy Studies
Mpact (formerly Rail~Volution)
City of Piedmont, CA
Great Falls Development Authority, Inc.
HUDs Office of Policy Development and Research