Greenhouse Gas Emissions Reduced 17% Worldwide in April, Study Says

A recently published study predicts a 4 to 7 percent decline in greenhouse gas emissions for 2020 compared to 2019.

1 minute read

May 20, 2020, 8:00 AM PDT

By James Brasuell @CasualBrasuell


Social Distancing

ames Kirkikis / Shutterstock

"The wave of lockdowns and shuttered economies caused by the coronavirus pandemic fueled a momentous decline in global greenhouse gas emissions, although one unlikely to last," reports Chris Mooney, Brady Dennis, and John Muyskens.

Those conclusions are sourced from a study published on May 19 in the journal Nature Climate Change. According to the study, the peak decline in greenhouse gas emissions reached 17 percent in mid-April, although some nations achieved a much larger reduction. 

The study "projects that total emissions for 2020 will likely fall between 4 and 7 percent compared to the prior year — an unheard-of drop in normal times, but considerably less dramatic than the decline during the first few months of the year when economies screeched to a halt," according to the article. 

The prediction of a 4 to 7 percent reduction in greenhouse gas emissions is in line with a target shared by Planetizen earlier this month: that the worldwide reduction in transportation as a result of stay-at-home orders and social distancing would result in a five percent reduction in greenhouse gas emissions—perhaps smaller a figure than many might expect, and far less of a temporary change than necessary to prevent the worst effects of climate change in the long-term.


Tuesday, May 19, 2020 in The Washington Post

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