An Inconvenient Map

What is wrong with this map?

2 minute read

April 19, 2007, 9:08 AM PDT

By Abhijeet Chavan @legalaidtech


What is wrong with this map?

The map shown above is from a series created by the Worldmapper project and shows greenhouse gas emissions. It is an equal area cartogram in which each territory is "resized according to the variable being mapped". These maps are useful for making visual comparisons:

Land Area
Land Area

Population
Population

Greenhouse Gas Emissions
Greenhouse Gas Emissions
Source: Worldmapper

(Some other maps of interest to Planetizen readers: commuting time, public transport, passenger cars and a dramatic map on forest depletion.)

The World Wildlife Fund uses a more familiar thematic map to illustrate the concept of "eco-debtors" and "eco-creditors". WWF defines countries that consume more resources than they can recover or release more CO2 than they can can absorb themselves are "eco-debtors".

Eco Debtors & Creditors

Source: WWF / BBC

An interesting new web-based tool for exploring data is Gapminder's Trendanalyzer which aims to reveal "the beauty of statistics by converting boring numbers into enjoyable interactive animations." You can try it out at "Gapfinder World 2006". Trendanalyzer was recently acquired by Google. Here is a screenshot of CO2 emissions (metric tons per capita).

Gapminder's Trendanalyzer Screenshot

Source: Google / Gapminder

All of the above provide a global view of climate change. But what does it mean to me personally? Visit Alex Tingle's Flood Maps website which shows the areas that might flood as a result of global warming. Flood Maps has its limitations of course, but there is no denying the impact of seeing streets and neighborhoods you recognize under a blue pattern indicating possible flooding.

Southern California

Source: Flood Maps by Alex Tingle

That's a map for the Southern California area. Are you in New York? Or Sacramento, CA?


Abhijeet Chavan

Abhijeet Chavan is the co-founder and former co-editor-in-chief of Planetizen and the executive producer of Planetizen Courses. He was also the chief technology officer of Urban Insight, Inc., the technology consulting firm that operates Planetizen. Abhijeet Chavan has over 20 years of technology consulting experience working with government, higher education, legal services, and non-profit clients.

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

Historic homes in St. Augustine, Florida.

Florida Considers Legalizing ADUs

Current state law allows — but doesn’t require — cities to permit accessory dwelling units in single-family residential neighborhoods.

March 18, 2025 - Newsweek

Aerial view of suburban housing near Las Vegas, Nevada.

HUD Announces Plan to Build Housing on Public Lands

The agency will identify federally owned parcels appropriate for housing development and streamline the regulatory process to lease or transfer land to housing authorities and nonprofit developers.

March 17, 2025 - The Wall Street Journal

Canadian flag in foreground with blurred Canadian Parliament building in background in Ottawa, Ontario, Canada.

Has President Trump Met His Match?

Doug Ford, the no-nonsense premier of Canada's most populous province, Ontario, is taking on Trump where it hurts — making American energy more expensive.

March 11, 2025 - Toronto Star

Line of tents set up against a fence on a public sidewalk in San Francisco, California with bikes and personal items around.

San Francisco Announces Plan to Overhaul Homelessness Strategy

Mayor Lurie’s three-phase plan promises 1,500 new shelter beds and a restructuring of outreach teams and supportive service programs.

6 hours ago - ABC7 News

Close-up on door handle with door key inserted and blurred furnished room visible beyond.

$5 Billion Rental Assistance Fund Set to Run Out of Cash

“No additional funding from HUD will be forthcoming,” HUD announces.

7 hours ago - News From the States

Parking lots and buildings in downtown Denver, Colorado.

Denver Could Eliminate Parking Requirements

The city could remove parking mandates citywide to reduce the cost of housing construction and ease permitting for new projects.

March 20 - Strong Towns