Navigation Links
Environmental benefit of biofuels is overestimated, new study reveals
Date:6/8/2012

Two scientists are challenging the currently accepted norms of biofuel production. A commentary published today in GCB Bioenergy reveals that calculations of greenhouse gas (GHGs) emissions from bioenergy production are neglecting crucial information that has led to the overestimation of the benefits of biofuels compared to fossil fuels.

The critique extends to the Life Cycle Analysis models of bioenergy production. Life Cycle Analysis (LCA) is a technique used to measure and compile all factors relating to the production, usage, and disposal of a fuel or product. The authors conclude that LCAs are overestimating the positive aspects of biofuel use versus fossil fuel use by omitting the emission of CO2 by vehicles that use ethanol and biodiesel even when there is no valid justification.

Proponents of bioenergy argue that analyses should always ignore this CO2 because plants grown for biofuel absorb and therefore offset the same amount of carbon that is emitted by refining and combusting the fuel. The commentary critiques this method by arguing that doing so double counts the carbon absorbed by plants when the bioenergy crops are grown on land already used for crop production or already growing other plants because the bioenergy does not necessarily result in additional carbon absorption. Biofuels can only reduce greenhouse gases if they result in additional plant growth, or if they in effect generate additional useable biomass by capturing waste material that would otherwise decompose anyway.

The overestimation of bioenergy LCAs becomes increasingly magnified when the omission of CO2 is combined with the underestimation of nitrogen emissions from fertilizer application. According to lead author Dr. Keith Smith, from the University of Edinburgh, "Emissions of N2O from the soil make a large contribution to the global warming associated with crop production because each kilogram of N2O emitted to the atmosphere has about the sa
'/>"/>

Contact: Rhea Kressman
GCBB-Bioenergy@igb.uiuc.edu
001-217-333-9651
Wiley-Blackwell
Source:Eurekalert

Page: 1 2

Related biology news :

1. Wells Fargo fosters environmental conservation through University of Miamis RJD program
2. Tiny plants could cut costs, shrink environmental footprint
3. New museum-university partnership ushers in new era of environmental science education
4. Long-term research reveals causes and consequences of environmental change
5. Stomata development in plants unraveled -- a valuable discovery for environmental research
6. Increasing water scarcity in Californias Bay-Delta will necessitate trade-offs; hard decisions needed to balance various environmental risks
7. Environmental factors in Tiny Tims near fatal illness
8. Reproductive health providers should discuss environmental exposure risks with patients
9. Effects of environmental toxicants reach down through generations
10. Health benefits of vitamin D dependent on type taken
11. Study: In-patient, out-patient stroke rehab might benefit from yoga
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/18/2014)... of patients with undiagnosed, suspected genetic conditions, a certain ... higher molecular diagnostic yield than traditional molecular diagnostic methods, ... The study is being released to coincide with the ... sequencing, which sequences the protein­coding region of the genome ... in a cell or organism), has been rapidly applied ...
(Date:10/17/2014)... This news release is available in German . ... need millions of sperms every day in order to reproduce? ... questions are the topic of the latest issue of the ... 16th, 2014). The evolutionary biologist Steven Ramm from Bielefeld University ... nature, it is not unusual for a female to copulate ...
(Date:10/17/2014)... in German . ... drugs. When treating overdoses, doctors are often limited to supportive ... there is a combination of drugs involved. So what can ... his grandmother,s pills? ETH professor Jean-Christophe Leroux from the Institute ... answer to this question. "The task was to develop an ...
Breaking Biology News(10 mins):Study examines type of exome sequencing and molecular diagnostic yield 2Study examines type of exome sequencing and molecular diagnostic yield 3Sperm wars 2Emergency aid for overdoses 2Emergency aid for overdoses 3
... newborn rabbit pups to learn the significance of new odors, ... milk may act as a chemical booster that facilitates the ... opportunity to nurse. , The findings, which deepen our ... earliest days of life, are reported in the October 10th ...
... at St. Jude Children's Research Hospital turned up the ... these unruly molecules perform critical functions in the cell. ... investigation and classification of these so-called intrinsically unstructured proteins ... roles in the daily activities of cells. , ...
... to manipulate the brain's perception of jaw movement while ... the importance of non-auditory sensory cues in the brain's ... Nasir and David Ostry of McGill University and appear ... Biology, published by Cell Press. , When we ...
Cached Biology News:Pheromone from mother's milk may rapidly promote learning in newborn mammals 2First major study of mammalian 'disorderly' proteins 2Sensory feedback during speech: The brain attunes to more than just sound 2
(Date:10/19/2014)... (PRWEB) October 19, 2014 The ... Defense, & Homeland Security), Technology, Payload, Type & ... and segments the global unmanned ground vehicle market ... and forecasting of market sizes. The report also ... and opportunities impacting it along with the adoption ...
(Date:10/18/2014)... The “Human Insulin Market- by Product Type, ... Human Insulin (Rapid Acting, Long Acting, Premixed)], by ... - Forecast to 2018” provides a detailed overview ... market trends, and strategies impacting the global human ... of the revenue and share analysis. , The ...
(Date:10/18/2014)... The report "1,6-Hexanediol Market by Application ... 2019", analyzes the global market on the basis ... industry details such as the key drivers, current ... , Browse 81 Market Data Tables and 29 ... on “1,6-Hexanediol Market by Application and by Geography ...
(Date:10/18/2014)... The Asia-Pacific hardware encryption display market report defines ... and forecast of revenue. This market was valued $5,154.0 ... million by 2018, at a CAGR of 58.4% from ... the Asia-Pacific hardware encryption market report, to get an ... a glimpse of the segmentation of the market, and ...
Breaking Biology Technology:Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 2Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 3Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 4Unmanned Ground Vehicle (UGV) Market Estimated to Reach $8.26 Billion by 2020 - New Research Report by MarketsandMarkets 5Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 2Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 3Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 4Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 51,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 21,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 31,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 41,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 5The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 3
... Systems, video is chosen as a finalist in the International Bio ... ... Greenville, DE (PRWEB) April 7, 2009 -- Impact Systems Inc., ... software tools and services, today announced their Compliance-in-a-Box video has been ...
... 7 The following release is being issued ... http://www.newscom.com/cgi-bin/prnh/20090325/DC89081LOGO ) WHAT: ... importance of medical science and discovery in the ... critical to maintaining America,s leadership in medical innovation. ...
... 7 /PRNewswire-Asia-FirstCall/ -- Biostar Pharmaceuticals,Inc. ("Biostar" or the "Company") (OTC Bulletin Board: ... , , Highlights for Year Ended December 31, 2008:, ... million, up from $15.9 million, for ... to $6,690,542 as compared to, $3,963,524 ...
Cached Biology Technology:Impact Systems' Compliance-in-a-Box™ Video is Announced as "Be the Buzz of Bio" Contest Finalist 2Impact Systems' Compliance-in-a-Box™ Video is Announced as "Be the Buzz of Bio" Contest Finalist 3Council for American Medical Innovation Brings U.S. Leaders in Medicine, Biotechnology and Discovery Together in Chicago for 'Best and Brightest Forum on Medical Innovation' 2Biostar Pharmaceuticals, Inc. Reports Record Revenues and Earnings for 2008 2Biostar Pharmaceuticals, Inc. Reports Record Revenues and Earnings for 2008 3Biostar Pharmaceuticals, Inc. Reports Record Revenues and Earnings for 2008 4Biostar Pharmaceuticals, Inc. Reports Record Revenues and Earnings for 2008 5Biostar Pharmaceuticals, Inc. Reports Record Revenues and Earnings for 2008 6
Taq DNA Polymerase (cloned), 250 units. Category: Nucleotides & Enzymes & Biochemicals, Modifying Enzymes, Polymerases....
... Reduce bench time to just 15 minutes! ... paralles that can be drawn between this exciting ... of instant foods. Instant meals consumed by ... format and are reconstituted by adding water. ...
APO(a) EIA Sample Size: 25 l...
...
Biology Products: