America’s ports made progress on pollution, but will it last?

Efforts to clean up pollution at America’s ports, which gained momentum under Biden’s climate policies, now face uncertainty as the Trump administration moves to roll back environmental regulations.

Alexa St. John and Etienne Laurent report for the Associated Press.


In short:

  • The Biden administration allocated $3 billion to reduce emissions at U.S. ports, funding cleaner equipment, infrastructure, and community engagement. Ports have already spent hundreds of millions on electrification, but many projects are still awaiting funding.
  • America’s 300 shipping ports are major sources of air pollution, disproportionately affecting nearby communities, often Black, Latino, and low-income. Despite efforts to cut emissions, pollution remains a significant public health threat, contributing to asthma, heart disease, and shortened life spans.
  • The Trump administration has frozen federal clean energy funding and is rolling back environmental regulations, leaving port authorities and frontline communities concerned about the future of air quality initiatives.

Key quote:

“In the current Trump administration, the clear intent seems to be to move away from electrification. And that will mean for the millions of people that live around the ports and downwind of the ports, poor air quality, more health effects.”

— Ed Avol, University of Southern California professor emeritus in clinical medicine

Why this matters:

With federal climate funding in limbo, millions of Americans face a future with dirtier air and worsening health outcomes. For port authorities and residents already waiting on long-promised air quality improvements, the uncertainty is unsettling. Diesel pollution is still an everyday reality, contributing to asthma, heart disease, and cancer.

Read more: What’s happening to EPA-funded community projects under Trump?

Firefighters fight a blaze

Increased autism risk linked to exposure to wildfire smoke during pregnancy

In a first-of-its-kind study published in Environmental Science and Technology, researchers found that mothers who were exposed to wildlife smoke during the third trimester of pregnancy were more likely to have children diagnosed with autism by age 5.


In short:

  • More frequent exposure to wildlife smoke during pregnancy was associated with a higher risk of autism in children.
  • The study analyzed more than 200,000 mother-child pairs in Southern California between 2006 to 2014; nearly 60% of them were exposed to wildfire smoke for more than 5 days during pregnancy.
  • The authors also found that prenatal exposure to particulate matter air pollution from a variety of sources — not just wildfires — is associated with an increased risk of autism in children.


Key quote:

“As climate change increases the frequency and intensity of wildfires in many parts of the world, understanding their relationship with autism is important to being able to develop preventive policy and interventions that will protect pregnant women and their children.”

- Study co-author Mostafijur Rahman, via Tulane University’s accompanying press release


Why this matters:

As climate change continues to impact global weather patterns, wildfires have become increasingly intense and frequent. Their impact on air pollution is significant - in California, wildfires account for over 70% of the fine particulate matter exposure on days with poor air quality. Environmental hazards that affect the health of pregnant people and their children can have long-term and severe outcomes. The authors of this study underscore the need for policies that protect vulnerable populations from air pollution and reduce the inequality in its health impacts.


Related EHN coverage:


More resources:

Luglio, David et al. for Environmental Science & Technology. Jan. 20, 2026
trees beside ocean under cloudy sky during sunset

Quatsino leads the charge on renewable energy

On Vancouver Island, Quatsino First Nation is completing a 150-kW solar project, piloting tidal power and partnering with a wind farm in its push for renewable energy.

Blue-green sea water with a mediterranean village on the hills above the water

‘We're tired of counting damages’: Call for climate funds after landslide devastates Sicilian town

Environmental groups are warning that Italy’s lack of investment in climate mitigation is leaving communities dangerously exposed, after a cyclone forced more than 1,500 people from their homes in southern Sicily.

Two firemen sitting in a vehicle

More than 87m people impacted by climate-related disasters in 2025

In 2025, more than 200 climate-related disasters affected more than 87.8 million people worldwide, according to preliminary figures from the International Disaster Database.

fire danger moderate today signage

Climate news is written in a language most people can't understand

A new report argues that English-only climate science and disaster alerts are excluding most of the world, and putting Indigenous communities at greater risk.
Terraced farm fields in a tropical location

Worries grow for Sulawesi farmers as nickel mining company plans expansion

Farmers around Indonesia’s Lake Towuti say plans to expand nickel mining for electric vehicle batteries threaten their ancestral lands, livelihoods and some of Sulawesi’s richest biodiversity.

Ilulissat, Greenland - coastal village with icebergs floating in bay

Arctic scientists 'feel pretty uncomfortable' on Greenland

Science in the Arctic — and Greenland — is on the frontline of pressing challenges facing humanity, like climate change and genetics. Some researchers worry international collaboration is at risk.
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.