Oak Ridge Today

Lunch with League: Global warming at a local level

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Melissa Allen-Dumas

A research scientist at Oak Ridge National Laboratory on Tuesday will discuss the expected impacts of climate change on extreme weather and cities.

Melissa Allen-Dumas is a research scientist in the Computational Sciences and Engineering Division of Oak Ridge National Laboratory.

Her talk at Lunch with the League is scheduled from 11:30 a.m. to 1 p.m. Tuesday at the Oak Ridge Unitarian Universalist Church at 809 Oak Ridge Turnpike. Those who attend can bring a lunch or purchase a boxed lunch. Coffee and tea will be served. The presentation will begin at noon, a press release said.

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ORNL studying hydrogen as rail fuel to fight climate change

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Pictured above at a ribbon-cutting ceremony on Wednesday, Nov. 9, 2022, for a project to research using hydrogen in a locomotive at Oak Ridge National Laboratory are, from left, Jim Gamble, vice president of engine and power solutions technology for Wabtec Corporation; Siddiq Khan, technology development manager for the U.S. Department of Energy’s Vehicle Technologies Office; Melissa Shurland, program manager in the Office of Research, Development, and Technology in the U.S. Department of Transportation’s Federal Railroad Administration; Dean Edwards, ORNL research and development lead; Xin Sun, ORNL associate laboratory director in the Energy Science and Technology Directorate; and Muhsin Ameen, senior research scientist at Argonne National Laboratory. (Photo by John Huotari/Oak Ridge Today)

Note: This story was updated at 1 p.m. Nov. 12.

Oak Ridge National Laboratory has started a research project to investigate using hydrogen fuel in a railroad engine to reduce carbon dioxide emissions and help fight climate change. Rail is one of the industries considered challenging to decarbonize along with aviation and shipping.

Researchers at ORNL and Argonne National Laboratory near Chicago will use a large single-cylinder 375-horsepower Wabtec engine that will burn a mixture of hydrogen and diesel fuel, which is what locomotives burn now. Under four-year agreements, the researchers will study things like engine hardware, fuel mixtures, and ignition strategies. Other low-carbon fuels could also be studied.

“We are excited to be a part of this collaboration because it addresses the need to decarbonize the rail industry by advancing hydrogen engine technology for both current and future locomotives,” said Josh Pihl, an ORNL distinguished researcher and group leader for applied catalysis and emissions research. “It is also a perfect example of how a DOE-funded collaboration between industry and national laboratories can accelerate the development and commercialization of technologies to help reduce carbon emissions from transportation.”

The 15.7-liter engine, larger than a tractor-trailer motor, was recently installed in garage-size research space at the National Transportation Research Center, an ORNL campus in Hardin Valley. ORNL had a ribbon-cutting ceremony for the engine research project on Wednesday.

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Roane State graduate doing climate change research at ORNL

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Rachel Andrews, a graduate of Roane State, is shown in an Oak Ridge National Laboratory lab getting serum bottles ready for an incubation experiment. (Photo courtesy Lynn Freeny/U.S. Department of Energy)

By Bob Fowler, Roane State staff writer

A recent Roane State Community College graduate is researching climate change and the microorganisms that contribute to it.

Rachel Andrews, a Morgan County resident who graduated from the community college in May 2019, is an intern at Oak Ridge National Laboratory. She’s doing research with Christopher Schadt in the Biosciences Division at the lab.

They are investigating methane production in peat, which is formed by the partial decomposition of plants in wet, acidic conditions of bogs. Scientists say methane gas is one of the major contributors to a warming planet.

“We study the methanogens that live in peatland soil,” Andrews said in an emailed response to questions about her research. She said these microorganisms produce quite a bit of methane and carbon dioxide, also identified as a culprit in climate change.

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ORNL scientist to describe current understanding of climate change

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Peter Thornton

Peter Thornton

Peter Thornton, deputy director of the Oak Ridge National Laboratory’s Climate Change Science Institute and group leader for the Terrestrial Systems Modeling Group in ORNL’s Environmental Sciences Division, will describe the current best understanding of climate change on Thursday, February 22 at 7 p.m., a press release said. The public is invited to attend this free program.

Thornton’s presentation will describe evidence regarding historical and modern climate changes, and projections of future climate based on Earth system models, the press release said. His current research involves the development, evaluation, and application of Earth system models for future climate change prediction. His areas of expertise include the interaction of water, energy, carbon, and nutrients within land ecosystems, the interactions of vegetation communities with the atmosphere, and weather observations over land, the release said. (See a brief ORNL summary here.)

The presentation, co-sponsored by Tennessee Citizens for Wilderness Planning, Climate Coalition Lobby-Knoxville, and the Citizens Climate Coalition at Oak Ridge Unitarian Universalist Church, will be in the Social Room at the Oak Ridge Civic Center.

Senate committee rejects proposal to close NOAA lab with Oak Ridge division

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The National Oceanic and Atmospheric Administration's Atmospheric Turbulence and Diffusion Division on South Illinois Avenue in Oak Ridge is pictured above on Tuesday, July 11, 2017. (Photo by John Huotari/Oak Ridge Today)

The National Oceanic and Atmospheric Administration’s Atmospheric Turbulence and Diffusion Division on South Illinois Avenue in Oak Ridge is pictured above on Tuesday, July 11, 2017. (Photo by John Huotari/Oak Ridge Today)

 

The U.S. Senate Appropriations Committee has rejected a Trump administration proposal to close a National Oceanic and Atmospheric Administration laboratory that has a division in Oak Ridge.

The budget submitted to Congress by President Donald Trump on Tuesday, May 23, had proposed closing NOAA’s Air Resources Laboratory. That air research laboratory has a field office in Oak Ridge, the Atmospheric Turbulence and Diffusion Division, or ATDD, on South Illinois Avenue.

But an appropriations bill approved by the Senate Appropriations Committee in a 30-1 vote on Thursday explicitly rejected the proposed elimination of the Air Resources Laboratory, which is part of NOAA’s Office of Oceanic and Atmospheric Research. (See page 40 here.)

The Senate committee recommended providing at least as much funding for the Air Resources Laboratory in fiscal year 2018 as in fiscal year 2017. Fiscal year 2018 starts October 1.

The bill approved by the Senate Appropriations Committee on Thursday is the Fiscal Year 2018 Commerce, Justice, Science, and Related Agencies Appropriations Act. It’s not clear when the legislation will be considered by the full Senate. [Read more…]

Climate scientist, evangelical Christian to give talk in Oak Ridge on Tuesday, May 16

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Katharine Hayhoe (Photo credit: Mark Umstot Photography)

Katharine Hayhoe (Photo credit: Mark Umstot Photography)

 

Katharine Hayhoe, a nationally-recognized climate scientist and evangelical Christian, will give a talk in Oak Ridge on Tuesday, May 16, a press release said.

The free talk is hosted by the League of Women Voters of Oak Ridge and the Climate Change Science Institute at Oak Ridge National Laboratory. Seats are limited.

Hayhoe’s presentation is titled “Climate for Change.” It’s scheduled from 7 to 9 p.m. Tuesday, May 16, at the Pollard Technology Conference Center at 210 Badger Avenue in Oak Ridge.

Hayhoe is both a distinguished climate scientist and an evangelical Christian, the press release said. An atmospheric scientist, her research focuses on developing and applying high-resolution climate projections to understand what climate change means for society.

Hayhoe has been named one of Time Magazine’s 100 most influential people and one of Foreign Policy’s 100 leading global thinkers, and she was recently named one of Fortune’s world’s greatest leaders, the press release said. She is a professor in the Department of Political Science and Director of the Climate Science Center at Texas Tech University. [Read more…]

If successful, ORNL process could play role in fighting climate change

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Rondinone_Song_hensley_r1

ORNL’s Yang Song (seated), Dale Hensley (standing left), and Adam Rondinone examine a carbon nanospike sample with a scanning electron microscope. (Photo by Oak Ridge National Laboratory)

 

In October, Oak Ridge National Laboratory announced that scientists had developed an electrochemical process that uses tiny spikes of carbon and copper to turn carbon dioxide, a greenhouse gas, into ethanol.

This month, Oak Ridge Today asked if the process using the very small catalysts could be used on a large scale to convert carbon dioxide in the atmosphere into ethanol, and if that might be used to combat climate change.

Here is the response from researcher Adam Rondinone, lead author of a team’s study published in ChemistrySelect:

“If we are successful, then yes, this process will take us a little bit closer to the goal of mitigating climate change.  But many other technologies and changes will also be needed, because of the scale of the problem. Also, this technology is more focused on what to do with CO2 (carbon dioxide) once it has been captured. While it could feasibly be coupled to a capture mechanism for extracting CO2 from the air, it will more likely be used to intercept and recycle emissions from point sources like power plants. Ultimately, it will just be one solution out of many that we will need to implement in order to prevent serious climate changes.” [Read more…]

UT Arboretum Society has global warming, climate change program Thursday

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Joanne Logan

Joanne Logan

The University of Tennessee Arboretum Society will present a program on global warming and climate change on Thursday in Oak Ridge.

The program, titled “It’s all in the Timing: Impacts of Global Warming on Ecosystems and Phenology,” is scheduled from 6-8 p.m. Thursday, January 19, in the City Room at Roane State Community College.

It will be presented by Joanne Logan, who is an associate professor at the University of Tennessee and a renowned expert on the subject, a press release said. Logan is an associate professor in the UT Department of Biosystems Engineering and Soil Science. She has studied applied and agricultural climatology for 30 years, and she directs the undergraduate program in environmental and soil siences, the press release said. [Read more…]

ORAU, University of Oklahoma win $8.4 million NOAA award for weather, climate change research

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ORAU Satellite Photo

Photo via ORAU on Twitter

 

The University of Oklahoma and Oak Ridge Associated Universities were recently awarded $8.4 million over three years from the National Oceanic and Atmospheric Administration to conduct weather and climate change monitoring research. The funding provides OU with the opportunity to expand its Cooperative Institute for Mesoscale Meteorological Studies’ research capabilities through a partnership with NOAA’s ORAU-managed Atmospheric Turbulence and Diffusion Division, or ATDD, program, a press release said.

“CIMMS is one of OU’s treasures as it has played a significant role in advancing our understanding of the atmosphere as well as provided valuable technologies and tools for operational forecasters,” said Kelvin Droegemeier, OU vice president for research. “This new award will build upon these historical strengths to address some of today’s most compelling challenges in weather and climate.”

The award will help further OU’s key research in areas such as boundary layer characterization, which is the atmospheric layer closest to Earth’s surface, and climate observations and analyses. This research will directly support NOAA’s goal to improve prediction of severe weather near the earth’s surface and will provide funding for a research position at the ATDD location in Oak Ridge. [Read more…]

ORNL-led study analyzes electric grid vulnerabilities in extreme weather areas  

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A new ORNL-developed method pinpoints electrical service areas across the southern United States most vulnerable to climate change and predicted population growth, which could inform decision makers about future substation needs. (Photo by ORNL)

A new ORNL-developed method pinpoints electrical service areas across the southern United States most vulnerable to climate change and predicted population growth, which could inform decision makers about future substation needs. (Photo by ORNL)

 

Climate and energy scientists at Oak Ridge National Laboratory have developed a new method to pinpoint which electrical service areas will be most vulnerable as populations grow and temperatures rise.

“For the first time, we were able to apply data at a high enough resolution to be relevant,” said ORNL’s Melissa Allen, co-author of “Impacts of Climate Change on Sub-regional Electricity Demand and Distribution in the Southern United States,” published in Nature Energy.

Allen and her team developed new algorithms that combine ORNL’s unique infrastructure and population datasets with high-resolution climate simulations run on the lab’s Titan supercomputer. The integrated approach identifies substations at the neighborhood level and determines their ability to handle additional demand based on predicted changes in climate and population.

The new, high-resolution capability can explore the interconnections in complex systems such as critical infrastructure and weather and determine potential pathways to adapt to future global change, a press release said. [Read more…]

Lunch today: ORNL Climate Change Science Institute, impact of climate on society

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Melissa-Allen

Melissa R. Allen, post-doctoral research associate, Computational Science and Engineering Division at ORNL (Submitted photo)

Joseph Kennedy and Melissa Allen of Oak Ridge National Laboratory will discus the lab’s Climate Change Science Institute and the impact of climate on society during a lunchtime meeting today (Tuesday, February 16).

Kennedy and Allen will be the guest speakers at the Lunch with the League. Kennedy is a postdoctoral research associate and computational glaciologist at the Institute. Allen is a post-doctoral research associate in the Computational Science and Engineering Division. 

Presented by the League of Women Voters of Oak Ridge, the program will be held at 11:45 a.m. Tuesday in  the Social Hall of the Oak Ridge Unitarian Universalist Church, located at 809 Oak Ridge Turnpike. The public is invited, and no reservations are necessary. Lunches are provided on a first-come basis for $8 or you may bring your own. Coffee and tea are provided.

Also at the meeting, there will be a formal announcement and details of an ORNL CCSI and a League partnership on climate change issues, a press release said. League member Chris Iversen, who leads the climate change action group for the LWVOR, has been working extensively with ORNL to develop this partnership. ORNL is already working with the city of Knoxville on similar partnership. [Read more…]

Democratic women host discussion on climate change on Monday

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Ellen Smith

Ellen Smith

Climate change will be the focus of a panel discussion presented by the Anderson County Democratic Women’s Club at 6 p.m. Monday, October 26. The discussion will be at the Clinton Community Center, which is at 101 South Hicks Street in Clinton. Panel members will be Ellen Faby, Jo Ann Garrett, Jan Newsome, and Ellen Smith.

Mary Headrick, a retired physician who was a Democratic candidate for the Third Congressional District, will facilitate the discussion, which will focus on protecting the environment and the effects of climate change on health.  A question-and-answer session will follow presentations by the panelists.

Those attending are invited to bring a pot luck item to share. Beverages will be provided. [Read more…]