Charting the Climate Change Crisis

Analysis of global greenhouse gas emissions data points to the sectors, activities, and countries that are the biggest contributors.

1 minute read

February 23, 2020, 5:00 AM PST

By Camille Fink


Air Pollution

Riffsyphon1024 (Steven Greenwood) [Public domain] / Wikimedia Commons

Mengpin Ge and Johannes Friedrich review a series of charts from the World Resource Institute’s ClimateWatch greenhouse gas emissions data tool that show global trends.

The energy sector is responsible for almost three-quarters of greenhouse gas emissions. In the energy sector, the top three end-use activities are road transportation, residential buildings, and commercial buildings.

"Since 1990, three sectors stand out as the fastest-growing sources of greenhouse gas emissions: Industrial processes grew by 174%, transportation (a subsector of energy) by 71%, and manufacturing and construction (also a subsector of energy) by 55%," note Ge and Friedrich.

They also report that ten countries emit 68 percent of global greenhouse gas emissions, with China topping the list at 26 percent. In addition, carbon dioxide makes up almost three-quarters of emissions.

Ge and Friedrich say that cutting back on greenhouse gas emissions needs to happen around the world. "The largest emissions sources, like the energy sector, are good places to start. But to fully tackle the climate crisis, we will need deep reductions across all sectors, big and small."

Friday, February 7, 2020 in The City Fix

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

Concrete Brutalism building with slanted walls and light visible through an atrium.

What ‘The Brutalist’ Teaches Us About Modern Cities

How architecture and urban landscapes reflect the trauma and dysfunction of the post-war experience.

February 28, 2025 - Justin Hollander

Complete Street

‘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.

February 27, 2025 - Streetsblog USA

Green electric Volkswagen van against a beach backdrop.

The VW Bus is Back — Now as an Electric Minivan

Volkswagen’s ID. Buzz reimagines its iconic Bus as a fully electric minivan, blending retro design with modern technology, a 231-mile range, and practical versatility to offer a stylish yet functional EV for the future.

March 3, 2025 - ABC 7 Eyewitness News

View of mountains with large shrubs in foreground in Altadena, California.

Healing Through Parks: Altadena’s Path to Recovery After the Eaton Fire

In the wake of the Eaton Fire, Altadena is uniting to restore Loma Alta Park, creating a renewed space for recreation, community gathering, and resilience.

March 9 - Pasadena NOw

Aerial view of single-family homes with swimming pools in San Diego, California.

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.

March 9 - Axios

Close-up of row of electric cars plugged into chargers at outdoor station.

Electric Vehicles for All? Study Finds Disparities in Access and Incentives

A new UCLA study finds that while California has made progress in electric vehicle adoption, disadvantaged communities remain underserved in EV incentives, ownership, and charging access, requiring targeted policy changes to advance equity.

March 9 - UCLA Luskin Center for Innovation