The importance of making ports and shipping more environmentally friendly was the topic of a town hall meeting on Tuesday. Three California members of Congress have introduced legislation to minimize greenhouse gases in shipping corridors.

Global emissions from boats and ships account for about 3% of total greenhouse gas emissions each year.

Alisa Kreynes, head of ports and shipping for C40 Cities, a nonprofit network of mayors around the world, said it is an expensive and challenging battle to clean up shipping corridors, but it must be done.

"The actors who commit to these green shipping corridor partnerships do share risks, but they also share benefits," Kreynes explained. "That's the only way we're going to align the shipping sector on a decarbonization pathway to 1.5. That means breaking down some of the traditional ways of doing business."

C40 Cities and Pacific Environment, along with the Ports of Los Angeles and Long Beach, participated in the town hall.

When introducing the Clean Shipping Act of 2023, Sen. Alex Padilla, D-Calif., said "California's port communities have been forced to shoulder the brunt of shipping pollution for too long." Other backers include Rep. Nanette Barragán, D-Calif., and Rep. Robert Garcia, D-Calif. The bill is endorsed by multiple environmental organizations.

C40 Cities has begun work on green shipping corridor programs not only with California ports, but with Shanghai and Singapore as well.

Dawny'all Heydari, climate campaign manager of advocacy for the nonprofit Pacific Environment, said without greener shipping ports, locals who live near them will suffer significant health problems, and some ports are already making headway.

"The San Pedro Bay Port has announced a number of green shipping corridors," Heydari pointed out, "to begin scaling low- and zero-emission fuels, and reduce and eliminate greenhouse gas emissions and, by proxy, air pollution."

The American Lung Association has said the Los Angeles metropolitan area has some of the worst smog pollution in the nation. Emissions from oceangoing vessels are part of the problem.

Clean-air advocates in Colorado are celebrating new EPA standards, which they believe can play a major role in reducing air pollution impacting national parks and Colorado's Front Range communities.

The rule aims to cut more than seven billion tons of greenhouse gases by requiring carmakers to reduce or eliminate tailpipe pollution.

Travis Madsen, transportation program director for the Southwest Energy Efficiency Project, said the EPA's goals are achievable, because you can drive where you want to go right now using zero-emission technology.

"Electric vehicles can take us along scenic byways. We've got charging stations between Denver, where I live, and Rocky Mountain National Park. The tools are here now, they're available, they work, they can cut pollution," he said.

The EPA downgraded the Front Range to "severe" for air quality violations in 2022, largely due to ground-level ozone pollution produced by oil and gas operations and tailpipe emissions. The new rule, which applies to passenger cars up to medium-duty vehicles sold between 2027 and 2032, has been embraced by automakers and unions.

The EPA projects that the rule will create $100 billion in benefits each year, including $13 billion in health-care savings due to improved air quality.

Gary Hall, Estes Park mayor, said the air has been so bad lately that it's hard to see the mountains in Rocky Mountain National Park. He says poor air quality - from wildfires linked to climate change, or ground-level ozone - impacts the national park experience for tourists, and many don't return as often.

"And therefore it impacts the economy. My hotel owners suffer, my restaurants suffer, my merchants selling Estes Park t-shirts and taffy suffer," Hall claimed.

The rule gives automakers flexibility on how to cut emissions. Advanced gasoline, plug-in hybrid, and electric are all on the table. But many expect it to spur U.S. manufacturers to catch up with Europe and China in electric vehicle production. Madsen said once you drive off the lot, EVs offer big savings.

"Electric vehicles are simpler, they're easier to maintain. And fuel, if you're charging at home on a residential electricity rate, is equivalent to less than a dollar a gallon of gasoline," he explained.


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Biofuels are painted as a greener energy alternative to fossil fuels but a new study found the industry produces plenty of its own air pollutants.

American biofuel plants reported emitting nearly 13 million pounds of hazardous air pollution in 2022, according to a report from the Environmental Integrity Project, trailing only slightly behind the 14.5 million pounds oil refineries released.

Tom Pelton, director of communications for the nonprofit, said South Dakota's 16 biofuel plants, which mostly make ethanol from corn, produce about 1.7 million pounds of greenhouse gases each year and 350,000 pounds of air pollution, including known carcinogens. Biofuel production is concentrated in the Midwest and Pelton pointed out people living nearby could suffer health effects.

"It's hard to detect and hard to track, but a person living downwind from one of these plants might have a few percentage points more chance of getting cancer over their lifetime," Pelton explained.

The report recommended the Environmental Protection Agency increase monitoring and control of air pollutants, improve the accuracy of emissions reporting and end current exemptions for ethanol manufacturers under the Clean Air Act. It also suggested ending government subsidies for biofuels, which benefit area farmers and communities.

According to the South Dakota Corn Utilization Council, ethanol production supported nearly 30,000 jobs in the state in 2022 and more than $4 billion in corn production.

Pelton argued expanded agricultural production for the industry can have other negative effects.

"When you subsidize growing corn to make ethanol, more kind of questionable lands are converted from grasslands and forests into row crops of corn," Pelton noted. "That takes away habitat for birds and for insects and for wildlife."

The conversions may also lead to the use of more chemical fertilizers, he added, which can lead to algae blooms and other problems in waterways. Among the 32 U.S. biofuel projects proposed or underway, according to the report, is a new biodiesel facility in Lake Preston, South Dakota.


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A new report finds New York City environmental-justice communities face worsening air quality.

It's part of the Community Heat and Air Mapping Project for Environmental Justice. Hunts Point in the Bronx has the highest particulate matter exposure, exceeding national health standards.

Victoria Sanders, climate and health program manager, New York City Environmental Justice Alliance, said congestion pricing could have helped, but Gov. Kathy Hochul indefinitely paused the program. Sanders said the program would have helped with pollution mitigation.

"I believe there was a center that was planned in the Bronx for asthma and now, when that's in jeopardy, that funding is not there anymore, and so the benefits that were supposed to come from that new source of funding are likely to be lost if we can't make sure that happens," she said.

The MTA was prepared to spend $130 million on mitigation for that borough. But an environmental assessment shows congestion pricing would have increased pollution in the outer boroughs and New Jersey. The Bronx would have seen increased soot from the more than 700 trucks entering the borough daily.

The report recommends renewable energy investments and targeted policies to improve air quality caused by pollution hot spots. It also suggests asking city and state lawmakers to introduce legislation reducing hazardous air quality.

While air pollution declined in parts of the city over time, Sanders noted environmental justice communities haven't gotten a break. However, she said there are historic challenges to addressing environmental justice communities.

"Over the years, the built infrastructure has been put in into those communities where there is a lot of highly polluting businesses. There's waste-transfer stations, there's power plants, there's dense e-commerce truck routes and things like that," she explained.

Sanders added that well-funded owners of these businesses push back on policies and politicians making changes. The report also said lacking vegetation increases heat in neighborhoods, which affects nearby residential areas. City and state officials can use targeted investments for heat-mitigation efforts.


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