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Maine companies look to biochar as a climate solution, to capture carbon and improve soil health

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Maine companies look to biochar as a climate solution, to capture carbon and improve soil health


In a former biomass plant in Greenville, wood chips are flowing from hoppers into long tubes about three feet in diameter.

Pat Jones is the president of Clean Maine Carbon, which burns wood in high-temperature, low-oxygen conditions known as pyrolysis.

“It starts out as wood” he said. “And as you can see when we come over here what comes out the other end is biochar.”

In the quest for climate solutions, Jones is among the Maine entrepreneurs banking on this charcoal-like substance. They say it can bind up carbon for decades, and improve agricultural soils at the same time.

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The end product has high carbon density, and is very stable, so less of the carbon will be released into the atmosphere than if it were left to decompose. So while Jones is making biochar, his business plan is focused on selling carbon credits to corporations.

“So somebody will say, ‘Would you like to sell credits to XYZ company?’ And we’ll say, ‘Yeah, what’s the price?’ They will pay on a per-ton basis, whatever the agreed value, based on carbon content and everything else,” Jones said. “And that’s the end of it, they never get the biochar and they don’t do anything. They get to use those credits to help reduce their footprint, their carbon footprint.”

Most of the biochar Jones has sold from the Greenville plant has been for agricultural applications. And he’s not yet certified to sell carbon credits, but pending the completion of an audit, he said he’ll be able to sell credits even on the biochar he’s already shipped.

Scientists and advocates debate the true value of carbon sequestration as a response to climate change. Jonathan Foley is executive director of Project Drawdown, a nonprofit that focuses on science-based climate solutions.

Foley says 95% of climate solutions should focus on reducing emissions by driving more efficient cars, for example, or insulating houses. But he said there’s also value in removing carbon from the atmosphere. And while there’s no silver bullet, biochar could be seen as a piece of silver buckshot.

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“And we can put that in farm fields, we can bury it in old mines, we can bury it in the ground, and it should last for hundreds, if not thousand of years under the right circumstances,” Foley said. “So it’s a pretty clever kind of hybrid of nature and some engineering that might be a pretty good little piece of silver buckshot.”

And researchers are looking for ways to put biochar to use. As a soil additive, for example. University of Maine associate professor YongJiang “John” Zhang said the physical structure of biochar allows it to hold water like a sponge during periods of heavy precipitation, and release it slowly. It can also hold nutrients, and Zhang said these qualities can be beneficial when applied to the sandy soils of blueberry barrens.

“But if you have the biochar, it can hold more water, and hold the nutrients to increase the water use efficiency, and nutrient use efficiency,” he said.

Zhang said other research is looking at biochar’s benefits to potato crops, and its ability to lock up particles of PFAS in contaminated fields and prevent them from being taken up by plants.

Jones said he plans to produce about 1,200 tons of biochar annually with the current setup. But he’d like to scale up, using more and bigger equipment, to create more biochar and also put the excess heat from the process to work.

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“So that it becomes more economical and practical to extract hot air and hot gasses for lumber drying for power generation, any number of things that could be done with this very clean, high-temperature gas,” he said.

Meanwhile, a second biochar facility, Standard Biocarbon in Enfield, hopes to start production in the next few months, and aims to produce about 1,200 tons annually.





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Recently Elected 26-Year-Old Wilton School-Board Member Dies Unexpectedly

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Recently Elected 26-Year-Old Wilton School-Board Member Dies Unexpectedly


Regional School Unit (RSU) 9 school board member Griffin Mayhew, 26, representing Wilton, died unexpectedly on Monday, just months after he first took office in June.

[ Community Split Over Mt. Blue Principal’s Halloween Costume, But RSU 9 Confirms Black is Back on the Job…]

“Griffin was an exemplary young man whose commitment, kindness, and thoughtfulness were evident throughout his service on the Board along with his support of student activities at Mt. Blue Campus.

RSU 9, also known as the Mt. Blue Regional School, serves Chesterville, Farmington, Industry, New Sharon, New Vineyard, Starks, Temple, Vienna, Weld, and Wilton. Griffin became one of Wilton’s three RSU 9 Board of Directors members after defeating opponent Douglas Hiltz in a 209-146 vote.

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The incumbent board member did not run for reelection.

Out of respect for Mayhew’s memory, the school district postponed the meeting scheduled for Tuesday.

“I don’t have many details or any information about services yet, but you should know that he was a thoughtful and decent member of the board. While his tenure on the board was short, it was clear to me that Griffin would become one of our best board members. He was exactly the sort of person you would want to see representing you in local government, and we will miss him,” said the Franklin County Democrats on Facebook.

Mayhew’s cause of death has not been released.

2025 Image of Mayhew from his Facebook Account



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Portland Planning Board green lights Maine’s would-be tallest building

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Portland Planning Board green lights Maine’s would-be tallest building


At 380 feet, the proposed tower on Union Street in Portland would be the tallest building in Maine. It is meant to resemble a lighthouse beacon. (Courtesy of Safdie Architects)

A nearly 400-foot tower that would transform Portland’s skyline moved one step closer to reality Tuesday night when it received unanimous approval from the city’s Planning Board.

The 30-story mixed-use, high-rise building is proposed for 45 Union St., adjacent to the Old Port.

Now, the developer will need to secure building permits, finalize financing and begin work on detailed construction documents. The project does not require any approval from the City Council.

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The tower, proposed by Portland developer East Brown Cow Management LLC, would stand at 380 feet, making it far and away the state and city’s tallest building. It would include more than 70 residential units, commercial space, an 88-room hotel and a restaurant at the top, and is just one part of a project called Old Port Square, designed to fill an entire city block.

Portland updated its zoning laws last year with the goal of allowing growth in the city while preserving its character. The overhaul included an increased maximum height for buildings in some of the city’s major corridors, permitting buildings up to 380 feet in downtown.

On Tuesday night, the board heard presentations about traffic impacts of the proposal and reviewed the developer’s latest revisions to the application before receiving a final round of public comment.

That testimony, both in person at the meeting and in submitted written comments, was mixed.

Local organizations, including Greater Portland Landmarks and the Portland Regional Chamber of Commerce, expressed support for the project, describing it as a modern but thoughtful design that would transform an underutilized parking lot into a vibrant mixed-use space.

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“This project shows that Portland can honor its history while preparing for its future,” said Thomas O’Boyle, director of advocacy at the chamber.

But other residents and local business owners criticized the building as an eyesore, whose height would disrupt Portland’s skyline and conflict with the city and Old Port’s historic character. Several commenters said the city, in need of more affordable housing, should prioritize those projects over new high-end apartments and a hotel.

In accordance with Portland’s inclusionary zoning rules, developers are planning to pay about $3.3 million into the city’s Jill C. Duson Housing Trust Fund in lieu of building affordable housing units.

During deliberations, the board acknowledged public concerns about the skyline and how it might visually transform the city, but noted that the applicants had met board standards. Members acknowledged that after raising the city’s maximum permitted downtown building heights last year, someone had to be the first to build in the new allowable space.

The planning board approved the project unanimously, although several members were absent.

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The board also passed language requiring that if the developer makes major material or architectural changes that substantially differ from the approved plans, they must submit those changes to the board for review.



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Woman dies after crashing into stopped tractor-trailer on Maine Turnpike

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Woman dies after crashing into stopped tractor-trailer on Maine Turnpike


YORK, Maine (WGME) — Police say an 81-year-old woman died after crashing into a tractor-trailer that had stopped in the breakdown lane on the Maine Turnpike in York.

Maine State Police say 81-year-old Janice Goldsmith of Massachusetts was driving on the Maine Turnpike in York around 3:15 p.m. on Monday when she crashed into the rear of a tractor-trailer that was stopped in the breakdown lane.

Goldsmith died at the scene.

According to police, the tractor-trailer had stopped in the breakdown lane due to a mechanical malfunction, and the driver had placed reflective warning triangles in the breakdown lane as required.

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The cause of the crash remains under investigation.



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