People should take wildfire smoke more seriously

Research shows wildfire smoke is a major health hazard, but many Americans continue to disregard the risks.

Zoë Schlanger reports for The Atlantic.


In short:

  • Wildfire smoke contains tiny particles that pose serious health risks and kill thousands annually.
  • Recent studies show almost all of North America has experienced smoke coverage at some point in recent years.
  • Despite the dangers, public awareness and protective actions, such as mask-wearing, remain insufficient.

Key quote:

“There’s a lot of chemicals in that. There’s all sorts of things in the pollution that you might not see in other sources of PM2.5. We’re still unclear on what that means for health.”

— Marissa Childs, an environmental-health researcher at the Harvard T. H. Chan School of Public Health

Why this matters:

Research indicates that wildfire smoke contains a hazardous mix of particulate matter, gases, and chemicals that can penetrate deep into the lungs and bloodstream. These tiny particles, known as PM2.5, are particularly concerning due to their ability to trigger respiratory and cardiovascular problems. For vulnerable populations—children, the elderly, and those with pre-existing conditions like asthma or heart disease—the risks are even higher.

Related EHN coverage:

A coyote walking along a road

Animal control has always been tough work. Climate change is making it harder

Bears, coyotes, mountain lions: More wild animals are tangling with humans as increased drought and heat alter their behavior. Animal control officers are scrambling to keep up.
A helicopter flying over a large fire

Wildfires hit Southern California during red-flag conditions

The Bryson Fire sparked Thursday afternoon in Malibu and quickly ballooned, burning up to 200 acres in just a few hours. Near San Diego, another major blaze broke out at Camp Pendleton.
Sugarcane branches laying on green sugarcane leaves

El Niño threatens global sugar supply

A poor sugarcane crop in India, the world’s second-largest producer, is hurting consumers and farmers — and undermining the country’s energy security goals.

A beach with houses on it and dried up land

Severe drought declared in six areas of England as reservoirs run low

Some reservoirs in southern England at critical levels as water companies call for extended restrictions that would affect golf clubs, private schools, and car washes.

Volcanic rock coastline with ocean waves

Climate change could send more toxic mining waste into coastal waters, study warns

Demand for metals has exploded in recent decades, thanks to population growth, technological innovation, and economic development. The volume of metal ores like iron and copper extracted globally quadrupled during the last half-century, and the trillion-dollar industry shows no signs of slowing down.

A view of a couple sitting on the floor looking through bills

Opinion: Climate policies can bring relief on affordability and beyond

Americans are suffering under an affordability crisis, while the climate crisis is making life more expensive. Both require urgent action — and both can be addressed simultaneously.

An illustration of the European Union on a map

Brussels says EU countries partly to blame for failure on key climate rule

There’s a circular blame game going on over who’s responsible for failures in EU methane law.
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.