How Dense Cities Reap Green Benefits

What they may lack in peace and quiet, crowded cities more than make up for by requiring residents to live smaller. Tangible environmental benefits follow.

1 minute read

March 1, 2015, 11:00 AM PST

By Philip Rojc @PhilipRojc


World population

Arenamontanus / Flickr

Backed up by research from the OECD, Emily Badger writes about a paradox of density. Long viewed as a blight by conservationists, the dense city actually reduces per capita emissions by making wasteful lifestyles less attractive. Smaller homes and increased reliance on public transit over automobiles make the greatest difference here.

This trend might lead to wider environmental benefits: two families living in an apartment building likely consume less energy than two families in detached houses outside the city. And the more people who pack into cities, the more land we can conserve outside of them.

The article includes a graphic from the OECD plotting per capita transport emissions against urban population density for selected major cities. An interesting takeaway is just how drastically New York City diverges from the rest of the nation in those metrics. 

Saturday, February 28, 2015 in The Washington Post - Wonkblog

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 30, 2025 - Diana Ionescu

Close-up on Canadian flag with Canada Parliament building blurred in background.

Canada vs. Kamala: Whose Liberal Housing Platform Comes Out on Top?

As Canada votes for a new Prime Minister, what can America learn from the leading liberal candidate of its neighbor to the north?

April 28, 2025 - Benjamin Schneider

Hot air balloons rise over Downtown Boise with the State Capitol building visible amidst the high rises.

The Five Most-Changed American Cities

A ranking of population change, home values, and jobs highlights the nation’s most dynamic and most stagnant regions.

April 23, 2025 - GoodMigrations

Aerial view of flooding during Hurricane Helene in North Carolina.

‘Quality Work, Fast’: NC Gears up for Homebuilding After Helene, Trying to Avoid Past Pitfalls

The state will field bids to demolish, repair and rebuild homes in the mountains. After struggles in eastern NC, officials aim to chart a different course.

30 minutes ago - NC Newsline

Washington

Washington State’s Parking Reform Law Could Unlock ‘Countless’ Acres for New Housing

A law that limits how much parking cities can require for residential amd commercial developments could lead to a construction boom.

May 1 - Streetsblog USA

Bluebird sitting on branch of green bush.

Wildlife Rebounds After the Eaton Fire

Following the devastation of the Eaton Fire, the return of wildlife and the regrowth of native plants are offering powerful signs of resilience and renewal.

May 1 - AP News

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.