Navigation Links
Biodiesel won't drive down global warming

EU legislation to promote the uptake of biodiesel will not make any difference to global warming, and could potentially result in greater emissions of greenhouse gases than from conventional petroleum derived diesel. This is the conclusion of a new study reported today in Chemistry & Industry, the magazine of the SCI.

Analysts at SRI Consulting compared the emissions of greenhouse gases by the two fuels across their overall life cycles from production to combustion in cars.

The results show that biodiesel derived from rapeseed grown on dedicated farmland emits nearly the same amount of greenhouse gas emissions (defined as CO2 equivalents) per km driven as does conventional diesel.

However, if the land used to grow rapeseed was instead used to grow trees, petroleum diesel would emit only a third of the CO2 equivalent emissions as biodiesel.

Petroleum diesel emits 85% of its greenhouse gases at the final stage, when burnt in the engine. By contrast, two-thirds of the emissions produced by rapeseed derived biodiesel (RME) occur during farming of the crop, when cropland emits nitrous oxide (N2O), otherwise known as laughing gas, that is 200-300x as potent a greenhouse gas as CO2.

The results of this analysis should have big implications for policymakers. The 2003 EU Biofuels Directive aims to increase the levels of biofuels to 5.75% of all transport fuels by 2010, up from roughly 2% currently. This will be further increased to a 10% share in 2010, the Commission announced in January this year.

Transportation currently accounts for more than a fifth of all greenhouse gas emissions emitted in the EU. Rapeseed-derived biodiesel is the major renewables-derived biofuel used across Europe and, as well as helping to improve energy security, is expected to play an important role in helping to meet the EU's Kyoto commitment to reduce levels of greenhouse gas emissions by 8% by 2012 relative to 1990 levels, and by 2 0% by 2020.


'"/>

Source:Society of Chemical Industry


Related biology news :

1. Biodiesel study targets cleaner air, cleaner engines
2. Learning to fight an adversary that wont stay down
3. Caloric restriction wont dramatically extend life span in humans: UCLA research
4. Field tested: Grasslands wont help buffer climate change as carbon dioxide levels rise
5. Scientists identify molecular events that drive cell senescence
6. Loves all in the brain: fMRI study shows strong, lateralized reward, not sex, drive
7. Unchecked DNA replication drives earliest steps toward cancer
8. Pair of cancer genes found to drive both cell migration and division
9. Random gene expression may drive HIV into hiding
10. Gap-climbing fruit flies reveal components of goal-driven behaviors
11. Once given no respect, cells tiny RNAS take drivers seat
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/16/2016)... 2016 The global wearable medical device market, in terms ... from USD 5.31 billion in 2016, at a CAGR of 18.0% ... ... advancements in medical devices, launch of a growing number of smartphone-based ... among healthcare providers, and increasing focus on physical fitness. ...
(Date:12/15/2016)... 2016 Advancements in biometrics will ... and wellbeing (HWW), and security of vehicles ... passenger vehicles begin to feature fingerprint recognition, ... beat monitoring, brain wave monitoring, stress detection, ... pulse detection. These will be driven by ...
(Date:12/8/2016)... Market Research Future published a half cooked research report ... Security and Service Market is expected to grow over the CAGR ... Highlights: ... Mobile Biometric Security and Service Market is ... of authentication and security from unwanted cyber threats. The increasing use ...
Breaking Biology News(10 mins):
(Date:1/17/2017)... Jan. 17, 2017  Northwell Health today announced ... of precision cancer research. As ... health care provider, Northwell Health diagnoses and treats ... is a Germany -based oncology ... Together they will greatly expand cancer biobanking activities ...
(Date:1/17/2017)... , ... January 17, 2017 , ... Pono Ola ... peaceful and healthy lifestyle, announced today the official launch of its much-anticipated Pono Board: ... mind. , In development for over a year, the patented Pono Board ...
(Date:1/17/2017)... ... January 17, 2017 , ... NeoTrident, ... provider of learning and performance management systems for high-consequence industries, announced today that ... “In the life sciences industry, organizations must pay much more attention to the ...
(Date:1/17/2017)... Jan. 17, 2017  Protagonist Therapeutics, Inc. (NASDAQ: ... has initiated a global Phase 2b induction study ... that targets alpha4beta7 integrin. The aim of this ... evaluate the safety/tolerability and efficacy of PTG-100 in ... to severe active disease. "We ...
Breaking Biology Technology: