Canada's oil sands pollution significantly underestimated

A recent study reveals that air pollution from Canada’s oil sands is up to 64 times higher than industry reports, matching the total emissions from all human-caused sources in Canada.

Ruth Kamnitzer reports for Mongabay.


In short:

  • The study used aircraft sensors to measure a wider range of pollutants than industry methods.
  • Emissions include volatile organic compounds and particulates harmful to health.
  • Indigenous communities have long expressed concerns about health impacts from oil sands pollution.

Key quote:

"The magnitude of emissions observed from oil sands operations was surprising, compared both to their reported emissions and to the total from all anthropogenic sources across Canada."

— John Luggio and Drew Gentner, study authors

Why this matters:

The underestimation of emissions raises significant health concerns, particularly for nearby Indigenous communities. The oil sands, one of the largest industrial projects in the world, have been under scrutiny for their environmental impact for years. This new data suggests that the true extent of their pollution is much greater, posing increased risks to air quality and health in surrounding communities.

A circular frame of soft and hard corals under water

'Slumping' South Korean corals worry divers, scientists studying climate change

Unlike ​hard corals supported by rigid calcium carbonate skeletons, soft corals rely on internal fluid pressure to keep upright.
Portrait of a group of kids huddled together with a soccer ball

Too hot to learn: how climate change hurts children’s chances from birth

Floods, droughts, and extreme heat can disrupt nutrition and healthcare in early life, with consequences that may last for years.

A rendering of a large mosquito in the palm of a human hand

One effect of climate change: More rats, ticks and mosquitoes — and more disease

This summer's weather has been a vivid reminder that climate disruption is bringing cycles of dry spells, high heat and heavy rains to the Chicago region.
Yellow smoke billowing out of valleys in between mountains

‘More toxic than car exhaust’: What’s the solution to Europe’s wildfire air pollution problem?

Tackling air pollution and climate change together could save lives and boost economies, a UN reports show.

A farm worker harvesting peppers from tall plants

A mysterious kidney disease has arrived in Texas

The condition, linked to heat on a warming planet, is affecting laborers from Central America and Mexico. As scientists race to track the growing epidemic, its victims have been driven further into hiding.
A row of gas towers flaring smoke and fire into the air

Global move away from oil could lead to conflict and migration, experts say

Researchers urge governments to help the worst afflicted countries, such as Nigeria and Algeria, which rely on oil revenues for public services.

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.