Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Grilling with charcoal less climate-friendly than grilling with propane

13.05.2009
Do biofuels always create smaller carbon footprints than their fossil-fuel competitors?

Not necessarily, finds a paper published today in Elsevier's Environmental Impact Assessment Review. The article, "Charcoal versus LPG grilling: a carbon-footprint comparison," reports that in the UK, the carbon footprint for charcoal grilling is almost three times as large as that for LPG grilling. (Liquefied petroleum gas (LPG), often referred to as propane, is a mixture of mostly propane and butane).

The overwhelming factors behind the difference, notes author Eric Johnson, are that as a fuel, LPG is dramatically more efficient than charcoal in its production and considerably more efficient in cooking. Charcoal is produced by heating wood in a kiln; commercial yields of charcoal are only in the 20-35% range, i.e. most of the rest of the wood is converted to gas and emitted into the atmosphere. Yields of LPG, by contrast, are greater than 90%.

LPG grills are akin to conventional cookers and ovens, in that they have power ratings and can easily be switched on and off. By contrast, charcoal grills do not offer easy mechanisms for regulating fuel consumption, and Johnson explained: "The primary factor in determining fuel consumption is the griller's loading, which is determined by the amount of charcoal that is used along with the quality and quantity of starting-aid that is required. "

Developing countries, primarily in Africa, are likely to be the source of charcoal loaded in the UK, the study points out. Contrary to a claim by the European Commission that "Trade in charcoal from Africa to the EU is not significant," [1] in 2008, the UK imported 80% of its charcoal from developing countries, and 50% of its charcoal from Africa. Nearly 70% of the total import comes from South Africa, Argentina, Namibia and Nigeria.

Forest stocks in the latter three countries are in decline, according to the UN's Food and Agricultural Organization, as they are on a global scale, especially in the developing world.

[1] www.europarl.europa.eu/meetdocs/2004_2009/documents/
cm/729/729457/729457en.pdf
The article is "Charcoal versus LPG grilling: A carbon-footprint comparison", Article in Press, Environmental Impact Assessment Review, doi:10.1016/j.eiar.2009.02.004

About Elsevier

Elsevier is a world-leading publisher of scientific, technical and medical information products and services. Working in partnership with the global science and health communities, Elsevier's 7,000 employees in over 70 offices worldwide publish more than 2,000 journals and 1,900 new books per year, in addition to offering a suite of innovative electronic products, such as ScienceDirect (http://www.sciencedirect.com/), MD Consult (http://www.mdconsult.com/), Scopus (http://www.info.scopus.com/), bibliographic databases, and online reference works.

Elsevier (http://www.elsevier.com/) is a global business headquartered in Amsterdam, The Netherlands and has offices worldwide. Elsevier is part of Reed Elsevier Group plc (http://www.reedelsevier.com/), a world-leading publisher and information provider. Operating in the science and medical, legal, education and business-to-business sectors, Reed Elsevier provides high-quality and flexible information solutions to users, with increasing emphasis on the Internet as a means of delivery. Reed Elsevier's ticker symbols are REN (Euronext Amsterdam), REL (London Stock Exchange), RUK and ENL (New York Stock Exchange).

Sandra Broerse | EurekAlert!
Further information:
http://www.elsevier.com
http://www.elsevier.com/locate/eiar

More articles from Ecology, The Environment and Conservation:

nachricht Scientists on the road to discovering impact of urban road dust
18.01.2018 | University of Alberta

nachricht Gran Chaco: Biodiversity at High Risk
17.01.2018 | Humboldt-Universität zu Berlin

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Optical Nanoscope Allows Imaging of Quantum Dots

Physicists have developed a technique based on optical microscopy that can be used to create images of atoms on the nanoscale. In particular, the new method allows the imaging of quantum dots in a semiconductor chip. Together with colleagues from the University of Bochum, scientists from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute reported the findings in the journal Nature Photonics.

Microscopes allow us to see structures that are otherwise invisible to the human eye. However, conventional optical microscopes cannot be used to image...

Im Focus: Artificial agent designs quantum experiments

On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.

We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...

Im Focus: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

Researchers reveal how microbes cope in phosphorus-deficient tropical soil

23.01.2018 | Earth Sciences

Opening the cavity floodgates

23.01.2018 | Life Sciences

Siberian scientists suggested a new method for synthesizing a promising magnetic material

23.01.2018 | Materials Sciences

VideoLinks Science & Research
Overview of more VideoLinks >>>