Some Minnesotans might already be booking flights for the upcoming holiday season. In the future, they could end up flying on a jet relying on cleaner fuel sources, with the state at the center of evolving solutions.

Sustainable Aviation Fuel is creating buzz in the industry as all facets of the transportation sector face increasing pressure to reduce emissions. Delta Air Lines and other partners recently announced plans for a blending facility in Rosemount to combine clean sources with conventional jet fuel.

Margaret Cherne-Hendrick, senior lead of innovation and impact for the nonprofit Fresh Energy, said there is an opportunity for the region to establish itself while also calling for a careful approach.

"Not just from a carbon intensity perspective but also from an environmental integrity perspective," Cherne-Hendrick explained. "How are we thinking about land-use conservation, water quality, air quality? All of those pieces are going to be really important as we consider how to build out our fuel pathways of the future."

Emerging sources include feedstocks derived from agriculture and green hydrogen boosted by the use of renewable energies in its production. Cherne-Hendrick pointed out Minnesota could be a big player because of its agricultural backdrop and using state and federal incentives to spur production can aid rural economies.

Global researchers warn there is still a level of uncertainty over just how effective the new sources could be in reducing the emissions from a commercial jet.

Fresh Energy and other clean energy and environmental groups warned investing too much into one source could have unintended consequences.

Trevor Russell, water program director for the group Friends of the Mississippi River, said if policymakers and industry leaders go "all in" on corn-based ethanol, for example, other natural resources could see negative effects.

"You would really build an aviation industry that is overly reliant on summer annual row crops that are the dominant source of runoff pollution to the Mississippi River," Russell emphasized.

He noted there is potential for winter oilseeds, which can be planted in concert with traditional crops without having to convert more land.

As research led by institutions like the University of Minnesota plays out, airlines are seeing record demand for air travel post-pandemic. And experts said current forms of Sustainable Aviation Fuel still represent a drop in the bucket of the fuel needed to get these planes from one city to another.

It's that time of year, when a strong winter storm might produce giant waves along Lake Superior shorelines that aren't frozen over.

Minnesota researchers are looking at how to harness those forces and turn them into usable energy. Superior's waves can sometimes top out at 10 to 15 feet in height before crashing into the shore.

University of Minnesota Duluth Assistant Professor of Mechanical and Industrial Engineering Craig Hill and his team have been looking into wave pattern data to learn just how powerful they can be.

Additional work will focus on deploying efficient devices that can convert wave energy into storable electrical energy. Hill said the Great Lakes region is a good "testing lab."

"We occasionally get these big storms," said Hill, "where we could, if the technologies were out there, we could power tens of thousands of homes from the waves in those storms."

Hill said one challenge is that Great Lakes waves are more intermittent compared to coastal areas on either side of the U.S.

He said those regions are seeing acceleration of this type of work, but noted that Superior can still be an ally in the movement, especially for testing.

He added that if the technology is perfected, waves could be one of many sources used in the transition away from fossil fuels.

Climate change is resulting in less ice cover on Lake Superior. Hill suggested that they can take that unfortunate impact and turn it into an opportunity.

"That has a big impact on the wave conditions," said Hill. "That has a big impact on the coastlines around the Great Lakes. And so, there might be opportunities to test out the devices year-round in the coming future here, on Lake Superior."

Hill said securing enough research funding is another challenge.

And before this technology is turned into a commercial-scale option, experts will have to ensure fish, aquatic mammals and shorelines aren't negativity impacted.




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This week, four tribal nations and environmental groups urged the Michigan Court of Appeals to overturn the state's approval of Enbridge's Line 5 tunnel project.

Attorneys for the groups argued the pipeline expansion threatens the Great Lakes and disregards tribal and ecological concerns. They are asking the state to consider a wider range of alternatives to the dual pipelines that carry crude oil and natural gas liquids beneath the Straits of Mackinac.

Carrie La Seur, legal director of the group For Love of Water in Traverse City, said the aging pipelines pose a real spill risk to lakes Michigan and Huron, citing Michigan's Environmental Protection Act for support.

"We argued that Michigan's Environmental Protection Act requires a really comprehensive look at feasible and prudent alternatives to any action that would create environmental damage," La Seur explained.

Enbridge released a statement saying in part the state's decision to approve the application for the Great Lakes Tunnel Project came after a tremendous investment of time and deliberation by the Michigan Public Service Commission and staff. For nearly four years they carefully examined the complex issue and considered many viewpoints, questions, concerns and ideas.

La Seur said the pipeline project is massive and unprecedented, involving drilling more than 300 feet beneath the land and extending more than four miles. She warned it could create even greater risks and complications.

"It would be transporting flammable product. It would require a lot of very challenging maintenance if there were ever a problem. Any type of spill cleanup would be extremely challenging," La Seur outlined. "There are all kinds of reasons why this tunnel presents some unique challenges."

The court has yet to make a decision in the case. Enbridge also needs a permit from the U.S. Army Corps of Engineers, which delayed its review of the project in 2023. The Corps plans to release its draft environmental report this spring.


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The U.S. Forest Service is facing a lawsuit from Montana conservation groups for authorizing a major logging project in a critical wildlife habitat. The Round Star logging project, located 13 miles west of Whitefish, would cover over 9,000 acres of forest land in an area inhabited by Canada lynx and grizzly bears. Both are federally protected under the Endangered Species Act, which means they should take priority in logging plans.

Steve Kelly, president of the Council of Wildlife and Fish, is one of the plaintiffs.

"It's already been logged heavily, so we're really talking about some of the last places that lynx can even survive locally, never mind connectivity from one place to another," he said.

According to Alliance for the Wild Rockies, the Round Star project doesn't properly take into account the cumulative effects of nearby projects, which total about 42,000 acres of logging and burning and 100 miles of new roads.

A federal court judge in 2023 ruled against the Forest Service on a project in the Kootenai National Forest that similarly threatened grizzly bear habitats. Kelly wonders why the agency continues to attempt passing projects without adequate analysis of their effects.

"The court now is quite adept at figuring out who's doing what and why and applying the law. So there's really not much wiggle room anymore for the agencies to slide one by," he continued.

Canada lynx require habitat with dense forests and deep snow that also support populations of snowshoe hare, which make up about 75% of the lynx diet.


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