Connect with us

Science

Significant reductions in global greenhouse gas emissions still possible

Published

on

Use of various mitigation techniques for natural gas fired electricity may hold key

Newswise — About a quarter of the world’s electricity currently comes from power plants fired by natural gas. These contribute significantly to global greenhouse gas emissions (amounting to 10% of energy-related emissions according to the most recent figures from 2017) and climate change.

By gathering data from 108 countries around the world and quantifying the emissions by country, a McGill-led team, which includes researchers from Carnegie Mellon, Johns Hopkins, University of Texas (Austin) and the University of Maryland, has estimated that total global carbon dioxide (CO2) emissions from the life cycle of gas-fired power is 3.6 billion tonnes each year. They found that this amount could be reduced by as much as 71% if a variety of mitigation options were used around the world.

More efficient plants could reduce greenhouse gases significantly
“We were astonished by how large the potential reduction in greenhouse gases could be by 2050, and even by 2030,” says Sarah Jordaan, an associate professor in the Department of Civil Engineering and the Trottier Institute in Sustainability in Engineering and Design at McGill University and the first author on the paper which was recently published in Nature Climate Change. “If natural gas is going to play a role in a low carbon future, even for a transitional period, there will be a need to improve efficiency in power plants and to cut methane emissions from natural gas production as well as to capture and store CO2.”

“We found that the most effective way to reduce greenhouse gas emissions was with carbon capture and storage, followed by making power plants more efficient,” added Andrew Ruttinger, a PhD student at Cornell University in Chemical and Biomolecular Engineering who participated in the research. “But the mitigation options that will be most successful in any given country will vary depending on the regional context and the existing infrastructure.”

Identifying drivers of emissions gives government tools to take action
The team calculated that the largest mitigation potential (39%) lies with five biggest emitters, the United States, Russia, Iran, Saudi Arabia, and Japan, all of whom, apart from Japan, are among the largest gas producers and consumers around the world.

Advertisement

“Climate change is a global challenge and achieving a low-carbon energy system points to the need for reducing emissions across the supply chain from gas extraction through end use,” said Arvind Ravikumar, a research associate professor in the Department of Petroleum and Geosystems Engineering at the University of Texas at Austin. “Our analysis demonstrates that significant efforts are needed to transition from current emissions levels, but also that by identifying the drivers of emissions in the gas supply chain, governments can take strategic, nationally-determined action to reduce their emissions.”

“Global mitigation opportunities for the life cycle of natural gas-fired power” by Sarah Jordaan et al in Nature Climate Change
https://doi.org/10.1038/s41558-022-01503-5

Source: McGill University

https://www.newswise.com/articles/significant-reductions-in-global-greenhouse-gas-emissions-still-possible?sc=sphn

https://stmdailynews.com/category/science/

Advertisement
Continue Reading
Advertisement
Click to comment

Tell us what did you think about this article?

infrastructure

That year LA declared it was at “Peak Car!”

Published

on

Peak Car
Los Angeles County Metropolitan Transportation Authority

Was there a time it was consider that “The City of Angeles,” had reached “Peak Car?”

I recently came across an article posted by the Metro Digital Resources Librarian on the Dorothy Peyton Gray Transportation Library and Archive web site run by Metro Los Angeles. The article talked about LA’s new obsession with the automobile and how it gained popularity, in the early 1920s.

Library researchers pointed out that notable resources concurred with this, including Scott L. Bottles’ Los Angeles and the Automobile: The Making of the Modern City, and Ashleigh Brilliant’s The Great Car Craze, How Southern California Collided with the Automobile in the 1920s.

The automobile was new and fresh, and also offered freedom to its owners, who realized that they could become more mobile and not rely solely on the massive LA street car network at the time.  The number of vehicle registrations in Los Angeles had quadrupled in just an eight-year period from 1914-1922.

“Automobile use exploded as the passenger vehicle transitioned from a hobbyist’s pursuit to a relatively affordable means of getting around the sprawling region and beyond.”

Metro Librarian found out what was happening on the public transit side of the story when they found an article published in Electric Railway Journal titled “California and Her Tractions, Part II.

Advertisement

MetroDigital Resource Librarian:

As one of several features titled “A Series of Articles on Salient Phases of the Electric Railway Situation,” author Edward Hungerford details the then current state of public transit in the Los Angeles area.

And within that overview, he interviews Paul Shoup, Pacific Electric Railways president and vice-president of Southern Pacific Company.

Hungerford documents Pacific Electric’s earnings in a recent six-month period, and asks Shoup “for the real translation of these figures.”

Shoup responds by stating:

They mean that the peak of the competition of the automobile, publicly or privately owned or operated, has been reached out here — and passed. Not only is the rapidly rising cost of cars and tires and gasoline and oil beginning to deter the overenthusiastic motorists, but I think that the novelty of excessive motor riding also is rather wearing off. The hazards of driving on crowded highways are becoming more apparent and parking spaces in towns and cities more a question of doubt.

In addition to our great numbers of motor stage routes in every direction, we now have some 500,000 automobiles in California licensed for pleasure purposes, to which should be added the cars owned and operated by the 100,000 Easterners who come out here every winter. The competitive effect of all these cars has been, and still is, vast indeed. But we already can see in it a declining curve.

Advertisement

Yes, you reads that right, Shoup declared that personal vehicle usage had peaked and that it was on the decline.

Shoup explains that Los Angeles Railway profits were consistent with those of Pacific Electric, but acknowledges that “increases in both operating cost and taxes had gone ahead a little more than proportionately.” But he intimates that the rising cost of automobile operation (gas, tires) means that cars will cease their encroachment into transit’s share of mobility.

MetroDigital Resource Librarian:

This statement was part of an interview published in a national journal. Was he telling industry professionals what they wanted to hear? Did he want to assuage fears of rail employees that their jobs were going to disappear as more people purchased and used automobiles? Was he hoping that his perspective would turn into a self-fulfilling prophecy so he could remain atop Pacific Electric and Southern Pacific?

You can read the full article here: https://metroprimaryresources.info/when-los-angeles-was-declared-to-have-hit-peak-car-in-1920/15665/

https://stmdailynews.com/category/stm-blog/blog/

Advertisement
Continue Reading

Science

Oklahoma Students to Hear from NASA Astronaut Aboard Space Station

Published

on

NASA
GMT362_22_38_Koichi Wakata_1018_Exp 68 crew

Students from Choctaw Nation Head Start, Jones Academy Elementary, and seven area public schools in Durant, Oklahoma, will have an opportunity this week to hear from a NASA astronaut aboard the International Space Station.

The space-to-Earth call will air live at 10:20 a.m. EST on Tuesday, Jan. 31, on NASA Television, the NASA app, and the agency’s website.

NASA astronaut Nicole Mann will answer prerecorded questions from pre-K through 8th grade student participants. The event, hosted by the Choctaw Nation of Oklahoma, is an opportunity for students and tribal members to get a firsthand look at living and working in space, inspiring the next generation to pursue STEM. The downlink aligns to students’ current science, technology, engineering, and math curriculum, which uses NASA lessons. The event also includes the opportunity for tribal students to connect and be inspired by Mann, who is the first Native American woman to fly in space.

Media interested in covering the event should contact Randy Sachs at [email protected] or 580-380-2597 no later than 10 a.m. Tuesday, Jan. 31.

For more than 22 years, astronauts have continuously lived and worked aboard the space station, testing technologies, performing science, and developing the skills needed to explore farther from Earth. Astronauts living in space aboard the orbiting laboratory communicate with NASA’s Mission Control Center in Houston 24 hours a day through the Near Space Network Tracking and Data Relay Satellites.

As part of Artemis, NASA will send astronauts to the Moon to prepare for future human exploration of Mars. Inspiring the next generation of explorers – the Artemis Generation – ensures America will continue to lead in space exploration and discovery.

Advertisement

See videos and lesson plans highlighting research on the International Space Station at:

https://www.nasa.gov/stemonstation

Source: NASA

https://stmdailynews.com/category/science/

Advertisement
Continue Reading

aerospace

NASA Launches Aeronautics Spanish-Language Webpages

Published

on

Lee esta nota de prensa en español aquí.

As part of its effort to provide more resources and information to new audiences, NASA has launched new webpages featuring aeronautics information in Spanish. The webpages aim to make aeronautics content more accessible to the Spanish-language community.

“This is a significant step forward in our efforts to make the knowledge we’ve accumulated at NASA available to people all over the country, and the world. We’re making sure that as we explore and tackle the biggest challenges facing aviation, we’re providing benefits for all,” said Bob Pearce, associate administrator for NASA’s Aeronautics Research Mission Directorate. “By presenting aeronautics information and educational materials in Spanish, we’re working to foster a diverse, bold and effective next generation of explorers. We’re counting on this generation to help NASA carry its vision into the future.”

According to data provided by the U.S. Census Bureau, Spanish is the second most widely spoken language in the United States, after English. The translation of NASA’s aeronautics content will help inspire the next generation of NASA explorers.

The webpages provide educational material on the work being done by NASA’s Aeronautics Research Mission Directorate. They contain information on top agency priorities, including sustainable aviation. NASA is committed to achieving net-zero greenhouse gas emissions from the aviation sector by 2050 and works to achieve that goal by leading in fields ranging from green technologies and aircraft design to composite manufacturing and sustainable fuel testing. The new pages will help the agency introduce new members of the public to this work.

Advertisement

In addition, the webpages will cover technological advances developed by NASA such as the Quesst mission, which will demonstrate quiet supersonic technology, possibly opening the door to commercial supersonic flight over land. Readers will be able to learn about NASA’s Advanced Air Mobility mission, which works to assist with the development of air transportation systems across the country, aeronautics tests at NASA’s wind tunnels and other facilities, and more.

The webpages also contain content designed for young learners focused on science, technology, engineering, and math (STEM), intended to help parents and teachers introduce children to these fields of study.

To view the Aeronautics webpages in Spanish, visit:

https://www.nasa.gov/aeroes

Source: NASA

Advertisement
Continue Reading

Subscribe to the SPR Newsletter

DON’T MISS A DINK

Be the first to know when the latest episode of Sleeve's Senior Pickleball Report is released on YouTube and more...

We don’t spam! Read our privacy policy for more info.

Advertisement pet, pets, dog, dogs, supplements, Pawlife, Pawlife Pets, dog health, dog treats, all natural, wellness product, dog supplements, all-natural
Advertisement

Want more stories 👋
News you Can Use, "THIS MOMENT!"

Sign up to receive awesome articles directly to your inbox, every month.

We don’t spam! Read our privacy policy for more info.

Advertisement

The Latest from TNC Network: TNC Network News

Trending

%d bloggers like this: