The National Institute of Standards and Technology (NIST) is an agency of the U.S. Department of Commerce.

LASER technology is being used to determine greenhouse gas emission sources

Researchers from the University of Adelaide developed a laser that can remotely detect greenhouse gases and operates over a large range within the mid-infrared light spectrum.

Project leader David Ottaway said the innovative technology could be used to identify “molecular fingerprints” by searching for traces of airborne gases.

“The new laser is operating at a wavelength where many hydrocarbon gases, including the greenhouse gases, absorb light,” he said.

“This particular laser that we’ve demonstrated has the broadest tuning range, which means that it can cover more frequencies than any other fibre laser. Usually they can only work on a narrow range of light.

“By changing the wavelength of our laser, we can measure the light absorption patterns of different chemicals with a high degree of sensitivity.”

The National Institute of Standards and Technology (NIST) is an agency of the U.S. Department of Commerce.
Source: The National Institute of Standards and Technology (NIST) is an agency of the U.S. Department of Commerce.

Associate Professor Ottaway said the technology could play a key role in detecting methane emission sources.

“Methane is the dominant component in natural gas, which has a carbon footprint roughly 25 times that of CO2 for the same amount of gas released, and is the second most prominent greenhouse gas after CO2,” he said.

“One of the things we can do with this technology is tell the difference between ethane and methane. If you can actually detect a difference between them, you can determine if it’s coming from an agricultural source or not.”…

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The Green Living Guy, Seth Leitman is a green living expert, celebrity and Editor of the McGraw-Hill, TAB Green Guru Guides. Seth is also an Author, Radio Host, Reporter, Writer and a Environmental Consultant on green living. The Green Living Guy writes about green living, green lighting, the green guru guides and more. Seth's books range from: # Build Your Own Electric Vehicle by Bob Brant and Seth Leitman (2nd and 3rd editions) # Build Your Own Plug-in Hybrid Electric Vehicle by Seth Leitman # Build Your Own Electric Motorcycle by Carl Vogel # Green Lighting by Seth Leitman, Brian Clark Howard and Bill Brinsky # Solar Power For Your Home by David Findley # Renewable Energies For Your Home by Russel Gehrke # Do-it-Yourself Home Energy Audits by David Findley # Build Your Own Small Wind Power System by Brian Clark Howard and Kevin Shea # and more green living books to follow.