Canada's oil sands emit more air pollutants than previously reported

A new study reveals that Canada's tar sands operations emit air pollutants at levels significantly higher than previously estimated, posing a serious environmental and health concern.

Nicholas Kusnetz reports for Inside Climate News.


In short:

  • The study, published in Science, used aircraft measurements to find organic carbon emissions from Canada's tar sands are 20 to 64 times higher than reported by companies.
  • These emissions include compounds contributing to hazardous air pollution and particulate matter that can travel long distances, affecting air quality far beyond the immediate area.
  • The findings highlight a critical underestimation of pollution levels, raising concerns about the health impacts on local and distant communities.

Key quote:

"The absolute magnitude of those emissions were a lot higher than what we expected."

— John Liggio, research scientist, Environment and Climate Change Canada

Why this matters:

This revelation underscores the often-underestimated environmental impact of oil sands operations, directly affecting air quality and health outcomes. It also raises significant questions about current regulatory practices and the need for more accurate pollution monitoring, resonating with broader environmental and health concerns on a national scale.

Be sure to read about the Native tribes, hell-raisers and lawyers who have combined to battle pipeline projects.

A view of a sidewalk in a neighborhood with trees lining the street

The hidden history of how Big Oil invented the American Dream

From the family car to the dream kitchen, fossil fuel companies sold a way of life that depended on their products. New evidence shows how they did it.
Two construction workers looking up at scaffolding on a new build

Oil and tech money back measure to limit California environmental law

Proposition 45 would ease development of a wide range of projects, including some fossil-fuel facilities and possibly AI data centers.
A view of a bamboo forest

The case for low-carbon bamboo fuel starts at $2.75 a gallon

The fastest-growing plant on Earth can be turned into biocrude with almost no waste. A new study finds it emits 26 times less carbon than petroleum diesel.
A view of dark storm clouds with blue skies in the background

In Honduras, hard hit by drought, authorities hope to make it rain using contentious tactic

Global warming is making the El Niño weather pattern stronger, and that’s prolonging a devastating drought across a region of Central America known as the Dry Corridor.
A woman with an umbrella looking out over a city street at night

This year’s powerful El Niño may preview California’s climate future

Researchers warn that this winter’s El Niño impacts could be a window into the future, with higher seas and more intense storms.
A view of a miniature living room with doll-sized furniture

Where fossil fuels are lurking in your home — room by room

Tour our miniature dream house to see how oil and gas became part of everyday products.
A Black man standing in front of a voting booth
Credit: Ahmed/Unsplash+

How data centers are shaping Black voters’ climate concerns

Concerns about utility bills, data centers, and pollution show why Black Americans want action from elected officials.
From our Newsroom
Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

One facility has emitted cancer-causing chemicals into waterways at levels up to 520% higher than legal limits.

Regulators are underestimating health impacts from air pollution: Study

Regulators are underestimating health impacts from air pollution: Study

"The reality is, we are not exposed to one chemical at a time.”

Pennsylvania governor Josh Shapiro speaks with the state flag and American flag behind him.

Two years into his term, has Gov. Shapiro kept his promises to regulate Pennsylvania’s fracking industry?

A new report assesses the administration’s progress and makes new recommendations

silhouette of people holding hands by a lake at sunset

An open letter from EPA staff to the American public

“We cannot stand by and allow this to happen. We need to hold this administration accountable.”

wildfire retardants being sprayed by plane

New evidence links heavy metal pollution with wildfire retardants

“The chemical black box” that blankets wildfire-impacted areas is increasingly under scrutiny.

Stay informed: sign up for The Daily Climate newsletter
Top news on climate impacts, solutions, politics, drivers. Delivered to your inbox week days.