SEATTLE – Rice is an important source of nutrients for billions of people around the world, but it could lose some of its key health benefits as carbon dioxide levels continue to rise.

Researchers found rice is sapped of essential B vitamins when concentrations of the most common greenhouse gas are increased.

Their study published in Science Advances also confirms that levels of protein, iron and zinc decrease in the crop as carbon dioxide levels go up.

Kristie Ebi, a public health researcher at the University of Washington and one of the authors of the study, says B vitamins such as folate are critical nutrients for pregnant women.

"It's very important that pregnant women and children receive enough of the B vitamins so that the fetus can develop normally and the child can develop normally,” she stresses. “In these countries that rely so heavily on rice for a significant portion of their calories, this could have implications for maternal and child health."

The study says about one quarter of calories consumed globally come from rice.

Ebi points out plants grow faster with more carbon dioxide, but it also throws nitrogen levels out of balance, leaving less for the production of B vitamins.

She also notes it's not just rice-dependent countries that have to worry about the changing climate's effect on food. She says says rising temperatures also will hurt wheat crops, an important source of starch to Americans.

Ebi says many countries, especially those that are poor and disadvantaged, already are on the front lines of a changing climate.

"This study shows one other area that will particularly affect the poor – those who have limited access to resources – and is another reason why it is important to address the drivers of climate change – the emissions of our greenhouse gases," she stresses.

U.S. scientists partnered with researchers in Australia, China and Japan on this study. The U.S. Department of Agriculture was also a partner.

Ebi hopes she and other researchers can dive into the link between increased carbon dioxide and decreased B vitamin production in plants, although she says funding for this type of research is low.


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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.


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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.




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