NASA-funded research using satellites to study atmospheric nitrogen will examine how different farming approaches affect greenhouse gas emissions.

The $1.1 million grant will fund a team of scientists, including two at institutions in Maryland, who will use remote sensing satellites to look for accumulations of airborne ammonia and nitrogen in rural settings.

The researchers will then conduct soil sampling to determine which types of farming methods are better or worse for the climate.

Stephanie Yarwood, PhD - associate professor of environmental science and technology at the University of Maryland - is one of the principal investigators and said this research will help improve climate modeling.

"What we're really trying to do is make a connection between what a satellite can see, which is ammonia, and to make more of a link or less of a link depending on what we find, to nitrous oxide production," said Yarwood. "Because that's really what global models are trying to account for. They're trying to really understand, well how much greenhouse gas emission is there?"

She said as a greenhouse gas nitrous oxide is 300 times more powerful than CO2.

The grant runs for four years with research set to begin this winter.

While air quality measurements in cities are common, there is less data on rural areas. Yarwood said remote sensing satellite technology that can examine atmospheric chemistry at a continental scale is relatively new.

In studying soil contents, researchers hope to establish how microbial communities impact the release of nitrogen into the air and water.

Yarwood said the team will build mathematical models that can predict how nitrogen moves through the soil.

Researchers hope the work will offer hard data on the impact of various conservation practices and help policymakers and stakeholders decide how to spend both time and money.

"A lot of times, there's money invested, either from the government or from the producer," said Yarwood. "There's time in figuring new technologies out and applying those, there's some risk involved in that. I think we really need good data to be able to tell farmers, 'Yes, this is really something that's going to help', and we're going to see less nitrous oxide or not based on that."

The study includes a researcher from the University of California, Irvine - and one at the U.S. Department of Agriculture's Sustainable Agricultural Systems Laboratory in Beltsville.





get more stories like this via email

Dozens of union members rallied Wednesday in Sacramento, calling on lawmakers to pass a set of bills called the California Worker Climate Bill of Rights. The bills are intended to integrate worker's rights into the clean-energy transition.

The Climate Resilient Schools Act would create the first master plan to make sure our schools have clean, cool air, adequate shade and energy-efficient buildings and buses.

Jeff Freitas, president of the California Federation of Teachers, explained the importance of the bill.

"The bill also looks at everything that is needed," Freitas emphasized. "In terms of how it can help the state, how it can help the school environment and how it can help the students creating not only a more welcome space but a healthier space for our students and the workers there."

A second bill would require safety measures for workers at biofuel facilities. A third proposal would create a permanent fund for workforce development training -- with federal climate infrastructure monies coming -- and create labor standards for programs receiving federal dollars.

Amber Parrish, executive director of the Western States Council of the United Food and Commercial Workers union, said if we leave things to big business, the transition will mean unplanned layoffs, the creation of low-wage jobs and the decimation of the public sector.

"If we win strong labor standards in every emerging and shifting energy industry, we can ensure we have high-road jobs with family-sustaining wages and good benefits in green industries," Parrish contended.

The group is also calling for full funding in the new state budget to support workers displaced from the oil and gas industry. And the coalition opposes a measure on the November ballot called the "Taxpayer Protection and Government Accountability Act," which would put any future statewide tax increase on the ballot.

New research from the University of New Hampshire could help dairy farmers increase profits while reducing their effect on the climate.

Scientists said adding a plant-based essential oil blend to cow feed can improve a cow's digestion and reduce the release of methane, a potent greenhouse gas.

Andre Brito, associate professor of dairy cattle nutrition and management at the University of New Hampshire, said the findings are especially true for pasture grazing cows and shows a happy cow makes for a healthier environment.

"If those animals are provided those conditions, they'll be more productive," Brito pointed out. "Then the amount of methane that's being emitted by those animals is diluted because they're producing more product."

Brito reported adding the plant oils led to a more than 6% increase in milk production, which is good news for the majority of New Hampshire dairies, especially small to mid-size operations with smaller profit margins and higher equipment costs.

Still, Brito noted the research findings could translate to larger, industrial-size dairies. The factory farms often hold thousands of cows, generating significant methane emissions through their hearty burps and manure, which is often stored in large, polluting lagoons.

Brito acknowledged although the plant-based oils are readily available for use, farmers must weigh the economic benefits and overall environmental impact.

"Any investment that the farmers would make in a product has to be tied to economics," Brito stressed. "Even though farmers overall, they are conscious about the environment and they want to make sure that there is less carbon, nitrogen footprint out of their farms."

Brito's research was conducted on cows as they transitioned from the winter indoor-feeding schedule to eating their favorite plants in the pasture, a diet change which can increase the cow's emissions.

Brito added he hopes the research can help farmers better understand when to add the oils to the cow feed to potentially reduce the cow's overall climate effect.


get more stories like this via email

State officials in Maine are highlighting apprenticeships as a way to earn a living wage and contribute to the state's growing green economy.

They'll kick off the first-ever Youth Apprenticeship Week by exposing high school students to the numerous ways they can learn and earn in offshore wind energy development, passive home construction, aquaculture, and more.

Maine Department of Labor Apprenticeship Program Manager Kristine McCallister said about 90% of apprentices choose to stay with their employer after their training is complete.

"Apprentices have a mentor and they're earning wages and they're earning pay increases as they go," said McCallister, "so it's a really great way to attract talent to Maine and to keep talent here."

McCallister said apprentices will earn $300,000 more over their lifetime. The state aims to add 75,000 more workers to the economy over the next five years by growing career training pipelines.

A report by the Maine Labor Climate Council finds the state can create tens of thousands of jobs by building a zero-carbon transportation system.

Workers will be needed to install EV charging stations, electrify school bus fleets, and potentially build a high-speed rail line from Bangor to Boston.

McCallister said new Mainers, like those studying with Portland Adult Education, are using apprenticeships to fill these roles and other clean-energy jobs.

"Those pre-apprentices just graduated and have interviewed with some of our apprenticeship programs," said McCallister, "so we're really hoping they're going to help feed that pipeline as this economy is booming in Maine in terms of the renewable-energy sector."

McCallister said some companies are even offering on-the-spot interviews and job offers this week. All apprenticeship events are listed on the Department of Labor's website.




get more stories like this via email