Saturday, February 23, 2008

Biofuels adding Climate Change




Scientists have produced damning evidence to suggest that biofuels could be one of the biggest environmental con-tricks because they actually make global warming worse by adding to the man-made emissions of carbon dioxide that they are supposed to curb. Two separate studies published in the journal Science show that a range of biofuel crops now being grown to produce "green" alternatives to oil-based fossil fuels release far more carbon dioxide into the air than can be absorbed by the growing plants.

The scientists found that, in the case of some crops, it would take several centuries of growing them to pay off the "carbon debt" caused by their initial cultivation. Those environmental costs do not take into account any extra destruction to the environment, for instance the loss of biodiversity caused by clearing tracts of pristine rainforest.

"All the biofuels we use now cause habitat destruction, either directly or indirectly. Global agriculture is already producing food for six billion people. Producing food-based biofuel, too, will require that still more land be converted to agriculture," said Joe Fargioine of the US Nature Conservancy who was the lead scientist in one of the studies.

The scientists carried out the sort of analysis that has been missing in the rush to grow biofuels, encouraged by policies in the United States and Europe where proponents have been keen to extol biofuels' virtues as a green alternative to the fossil fuels used for transport.

Both studies looked at how much carbon dioxide is released when a piece of land is converted into a biofuel crop. They found that when peat lands in Indonesia are converted into palm-oil plantations, for instance, it would take 423 years to pay off the carbon debt.

The next worse case was when forested land in the Amazon is cut down to convert into soybean fields. The scientists found that it would take 319 years of making biodiesel from the soybeans to pay of the carbon debt caused by chopping down the trees in the first place.

Such conversions of land to grow corn (maize) and sugarcane for biodiesel, or palm oil and soybean for bioethanol, release between 17 and 420 times more carbon than the annual savings from replacing fossil fuels, the scientists calculated.

"This research examines the conversion of land for biofuels and asks the question 'is it worth it?' Does the carbon you lose by converting forests, grasslands and peat lands outweigh the carbon you 'save' by using biofuels instead of fossil fuels?" Dr Fargione said.

"And surprisingly the answer is 'no'. These natural areas store a lot of carbon, so converting them to croplands results in tons of carbon emitted into the atmosphere," he said.

The demand for biofuels is destroying the environment in other ways. American farmers for instance used to rotate between soybean and corn crops but the demand for biofuel has meant that they are growing corn only. As a result, Brazilian farmers are cutting down forests to grow soybean to meet the shortfall in production.
"In finding solutions to climate change, we must ensure that the cure is not worse than the disease," said Jimmie Powell, a member of the scientific team at the Nature Conservancy.

"We cannot afford to ignore the consequences of converting land for biofuels. Doing so means we might unintentionally promote fuel alternatives that are worse than the fossil fuels they are designed to replace. These findings should be incorporated into carbon emission policy going forward," Dr Powell said yesterday.

The European Union is already having second thoughts about its policy aimed at stimulating the production of biofuel. Stavros Dimas, the EU environment commissioner, admitted last month that the EU did not foresee the scale of the environmental problems raised by Europe's target of deriving 10 per cent of its transport fuel from plant material.

Professor John Pickett, chair of the recent study on biofuels commissioned by the Royal Society, said that although biofuels may play an important role in cutting greenhouse gases from transport, it is important to remember that one biofuel is not the same as another.

"The greenhouse gas savings that a biofuel can provide are dependent on how crops are grown and converted and how the fuel is used," Professor Pickett said. "Given that biofuels are already entering global markets, it will be vital to apply carbon certification and sustainability criteria to the assessment of biofuels to promote those that are good for people and the environment. This must happen at an international level so that we do not just transfer any potentially negative effects of these fuels from one place to another."

Professor Stephen Polasky of the University of Minnesota, an author of one of the studies published in Science, said that the incentives currently employed to encourage farmers to grow crops for biofuels do not take into account the carbon budget of the crop.

"We don't have the proper incentives in place because landowners are rewarded for producing palm oil and other products but not rewarded for carbon management. This creates incentives for excessive land clearing and can result in large increases in carbon emissions," Professor Polasky said.

31 comments:

Fox said...

Sorry. Look please here

Dinos said...

This comment has been removed because it linked to malicious content. Learn more.

Anonymous said...

Wonga denies it's more prone to fraud than traditional lenders, saying it doesn't allow loans being repaid
from accounts not held inside borrower's name payday loans no credit check there are numerous sources currently available that supply money advances.

Anonymous said...

Without this secret, a venture capitalist with all the greatest negotiating skill will
fail short term loans expect to try out
some rejection whenever your bankruptcy discharge is fresh - and make several baby steps towards larger purchases before you obtain your hopes up.

Anonymous said...

His writings on science are largely qualitiative not quantitative bad credit loans
in theory, anyone who desires a conventional 25-year repayment mortgage could be hit if your
term takes them well beyond the normal retirement age.

Anonymous said...

People utilized to afraid as a consequence of their a bad credit score score uk payday loan in this setup, criminal background has control over vehicle choice.

Anonymous said...

I believe what you said was actually very reasonable. However,
what about this? what if you wrote a catchier post title?

I ain't saying your information is not solid., but what if you added something to maybe grab folk's attention? I mean "Biofuels adding Climate Change" is
a little plain. You might look at Yahoo's front page and note how they create news titles to grab people
to open the links. You might try adding a video or a related pic or two
to grab people interested about what you've written.
Just my opinion, it might bring your website a little livelier.


Also visit my blog post; rayban

Anonymous said...

Being Fully A diabetic during the holidays can be a stress.

Cinnamon contains a substance that helps to utilize blood sugar levels naturally in the torso.
This Really Is sad and can be prevented if caught in time.


Feel free to surf to my web blog; http://reversediabetestype12.wordpress.com/, ,

Anonymous said...

In this post, we will display you the 3 primary roulette video games accessible in American casinos.

So why would anyone want to delete cydia anyway?
There are occasions ladies want to ditch the purse and go
dancing.

Here is my web-site: ipad apps 2014

Anonymous said...

This indicates an overpowering quantity of smartphones in the hands of
shoppers. It is 1 of the most well-liked application that allows you to change the appearance of
the iphone. First, Mexican Jumping Beans are not beans at all.


Review my site - http://www.juliettecapuleti.com/2013/08/perfect-harmony.html (http://www.rescro.net/profile/357372/EdLipscomb.html)

Anonymous said...

Very rapidly this website will be famous among all blogging and site-building visitors,
due to it's fastidious content

my blog ... หนังโป๊ฝรั่ง

Anonymous said...

Wow that was strange. I just wrote an extremely long comment butt afer
I clicked submit myy comment didn't show up. Grrrr... well I'm not writing all that over again.
Regardless, just wanted to say fantasic blog!

Here is my weblog Stopping fodeclosure in Midhigan -
www.stopmichiganforeclosurenow.com,

Anonymous said...

I think the admin of this site is in fact working hard in support of his
site, because here every data is quality based information.

Feel free to surf to my page - Look what I found

Anonymous said...

better from expenditure executive department during the day supported upon the terms of a caliber issue
and see what you are cooked with that centered set of firmness and feature it in small quantities.

roughly metallic element fasten is as well dead unimpeachable to everyone these days, the detriment related to Jerseys China Online Wholesale Jerseys Paypal Jerseys China Wholesale Jerseys World Cup jerseys 2014 use a people connectedness?
Now that you are purchasing online, never allow
it. Any alter distributer (online or off!) can skilled the
dealing. citation greeting users are bargain hunters.

As you let ne'er detected of without confirmatory their ill fame.
Many Manypeople as well develop many online shoppers
to wipe out

Anonymous said...

electronic cigarette reviews, smokeless cigarette, best e cigarette, e cigarette, e cigarette, smokeless cigarettes

Minko Chen said...

mont blanc, http://www.montblancpensoutlets.com/
louis vuitton handbags, http://www.louisvuittonhandbags.org.uk/
the north face outlet store, http://www.thenorthfaceoutletstores.org/
dansko outlet, http://www.dansko-shoes.us/
asics, http://www.asicsisrael.com/
oakley sunglasses, http://www.oakleysunglassescheap.us.com/
cheap oakley sunglasses, http://www.oakleysunglassesdiscount.us.com/
ghd hair straighteners, http://www.ghdhairstraightenerssale.co.uk/
herve leger sale, http://www.herveleger.us.com/
ysl outlet store, http://www.ysloutletonline.com/
nike outlet store, http://www.nikeoutletstore.us/
tiffany jewelry, http://www.tiffany-outlet.us.com/
jordan shoes, http://www.jordan-shoes.us.com/
christian louboutin uk, http://www.christianlouboutinoutlet.org.uk/
michael kors outlet store, http://www.michaelkorsoutletusa.net/
miami heat jersey, http://www.miamiheatjerseys.net/
longchamp bags, http://www.longchamphandbag.us.com/
beats by dr dre, http://www.beatsbydrdre-headphones.us.com/
michael kors outlet, http://www.michaelkorsusa.us/
coach outlet store, http://www.coachoutletstores.com.co/
wm917

Meiqing Xu said...

15922meiqing
oakley sunglases cheap
retro jordans
ray ban sunglasses
timberland boots
ed hardy outlet
ray ban sunglasses outlet
kobe bryant shoes
mcm handbags
true religion jeans
nike huarache
ralph lauren outlet
instyler curling iron
longchamp outlet
uggs boots on sale
louis vuitton
abercrombie
tory burch outlet
jordan pas cher
lebron james shoes
burberry outlet
north face uk
louboutin pas cher
hollister uk
cheap jerseys
soccer shoes
chaussure louboutin
p90x workouts
hollister
pandora bracelets
adidas superstar

Wenhao Guo said...

nike air max, http://www.airmax2014.net/
cheap ugg boots, http://www.cheapuggboots.me.uk/
mulberry,mulberry handbags,mulberry outlet,mulberry bags,mulberry uk
boston celtics, http://www.celticsjersey.com/
prada handbags, http://www.pradahandbagsoutlet.co.uk/
asics, http://www.asicsisrael.com/
michael kors factory store,michael kors outlet online sale,michael kors,kors outlet,michael kors outlet,michael kors handbags,michael kors outlet online,michael kors handbags clearance,michael kors purses,michaelkors.com,michael kors bags,michael kors shoes,michaelkors,cheap michael kors
oakley, http://www.occhialioakleyoutlets.it/
air jordan 11 retro, http://www.airjordan11.net/
chelsea jersey, http://www.chelseajerseystore.com/
kobe 9 shoes, http://www.kobe9elite.us.com/
tory burch sandals, http://www.toryburchshoesoutlet.com/
designer handbags, http://www.designerhandbags.us.com/
moncler outlet, http://www.moncler.us.com/
wedding dresses, http://www.weddingdressesoutlet.co.uk/
ray ban sunglasses outlet,ray ban sunglasses,ray ban,rayban,ray bans,ray ban outlet,ray-ban,raybans,ray ban wayfarer,ray-ban sunglasses,raybans.com,rayban sunglasses,cheap ray ban
denver broncos, http://www.denverbroncos.org/
insanity,insanity workout,insanity workout calendar,insanity calendar,insanity workout schedule
ddddd0925

方松腾 said...

ugg boots
cheap oakley sunglasses
true religion sale
air jordan 11 free shipping
toms outlet
louis vuitton outlet
michael kors outlet,michael kors outlet online,michael kors,kors outlet,michael kors handbags,michael kors outlet online sale,michael kors handbags clearance,michael kors purses,michaelkors.com,michael kors bags,michael kors shoes,michaelkors,cheap michael kors
north face jackets
ferragamo shoes
soccer jerseys,soccer jerseys wholesale,soccer jerseys cheap,soccer jerseys for sale,cheap soccer jersey,usa soccer jersey,football jerseys
ugg boots on sale
vans sneakers
oakley sunglasses
fitflops outlet
coach outlet online,coach purses,coach handbags,coach bags,coach handbags sale,coach handbags outlet

林磊 said...

2016-3-22 leilei
michael kors outlet
nike air max 95
gucci borse
reebok outlet
burberry outlet online
polo ralph lauren
true religion jeans
converse uk
louis vuitton handbags
rolex watches
coach factory outlet online
mizuno running shoes
adidas gazelle
converse sale
nike roshe run
coach outlet
oakley sunglasses
coach factory outlet online
air max 90
longchamp outlet
polo ralph lauren outlet
omega speedmaster
cheap oakley sunglasses
michael kors outlet
toms outlet store
ghd flat iron
levis 511
polo ralph lauren outlet
canada goose jackets
hollister clothing
polo ralph lauren
white converse
versace
ray bans
fitflops outlet
oakley store
michael kors
michael kors bags
true religion jeans
jordan shoes

xumeiqing said...

20160718meiqing
coach outlet store
timberlands
reebok pump
versace sunglasses
ray bans
true religion outlet
canada goose jackets
louboutin
nike air max uk
canada goose outlet online
louis vuitton handbags
nike huarache trainers
discount nike shoes
michael kors outlet
uggs outlet
true religion jeans
canada goose jackets
nike free flyknit 4.0
longchamp outlet
abercrombie and fitch outlet
ralph lauren outlet
michael kors outlet
nike roshe run women
adidas nmd r1
babyliss pro
nike air force 1
michael kors outlet
uggs sale
coach outlet
kate spade handbags
ghd flat iron
oakley sunglasses
christian louboutin shoes
ray ban sunglasses discount
polo outlet
michael kors outlet online

Gege Dai said...

ralph lauren outlet
louis vuitton neverfull sale
giuseppe zanotti shoes
mont blanc pens
christian louboutin outlet
christian louboutin shoes
true religion uk outlet
coach outlet online
moncler outlet
nike tn pas cher
tiffany jewellery
hermes outlet store
omega watches
ugg outlet
tods outlet
true religion outlet uk
kobe shoes
longchamp outlet
air max 90
louis vuitton handbags outlet
swarovski crystal
ralph lauren pas cher
nfl jerseys wholesale
ralph lauren outlet
ugg boots
nike free running
michael kors outlet
cheap jordans
coach outlet canada
michael kors outlet
longchamp
michael kors outlet clearance
yeezy boost
camisetas futbol baratas
coach outlet
0808jianxiang

fangyaoting said...

fangyanting20160919
thomas sabo uk
herve leger outlet
longchamp outlet
links of london
swarovski jewelry
nike air force 1
lacoste polo shirts
soccer jerseys
nike air max
kobe shoes

raybanoutlet001 said...

oakley sunglasses wholesale
nike kobe sneakers
true religion jeans
http://www.raybanglasses.in.net
http://www.cheapbasketballshoes.us.com
michael kors handbags clearance
adidas superstar UK
ray ban uk,cheap ray ban sunglasses

琐事 said...

true religion jeans sale
titans jersey
baltimore ravens jerseys
christian louboutin shoes
cheap nba jerseys
michael kors handbags
nike tn pas cher
supra shoes sale
washington redskins jerseys
michael kors handbags

Unknown said...

coach factory outlet
louis vuitton outlet
ray ban sunglasses
cheap jordans
nike air max uk
moncler outlet online
true religion outlet
christian louboutin sale
ray ban sunglasses outlet
kobe shoes
chanyuan2017.02.13

John said...

true religion jeans outlet
north face outlet
air jordans
vans outlet
hermes bags
gucci
michael kors uk
yeezy boost 350
cheap nfl jerseys
nmd adidas
2017215yuanyuan

raybanoutlet001 said...

michael kors outlet online
oakland raiders jerseys
yeezy boost 350 white
adidas nmd
nike blazer low
ralph lauren
birkenstock sandals
san francisco 49ers jerseys
michael kors handbags
michael kors handbags

dong dong23 said...

polo ralph lauren
ray ban sunglasses outlet
yves saint laurent handbags
converse shoes
adidas nmd
adidas yeezy
red bottom shoes
nike huarache
michael kors outlet clearance
tory burch outlet
20173.18wengdongdong

LCc 03 said...

longchamp bags
air force 1
air yeezy
クロムハーツ
adidas nmd
adidas stan smith
nike air zoom
true religion outlet
hermes belts
cheap jordans

Anjilo Jilo said...

Quickbooks Support Phone Number
Quickbooks Support Phone Number
Quickbooks Tech Support Number
Quickbooks Support Number
Quickbooks Technical Support Number
Quickbooks Tech Support Phone Number
Quickbooks Technical Support Phone Number
Quickbooks Help Desk Phone Number
Quickbooks Help Desk Number
Quickbooks Customer Service Number
Quickbooks Customer Service Phone Number
Quickbooks Customer Support Number
Quickbooks Customer Support Phone Number



Quickbooks Pro Support Phone Number
Quickbooks Pro Support Phone Number
Quickbooks Pro Tech Support Number
Quickbooks Pro Support Number
Quickbooks Pro Technical Support Number
Quickbooks Pro Tech Support Phone Number
Quickbooks Pro Technical Support Phone Number
Quickbooks Pro Help Desk Phone Number
Quickbooks Pro Help Desk Number
Quickbooks Pro Customer Service Number
Quickbooks Pro Customer Service Phone Number
Quickbooks Pro Customer Support Number
Quickbooks Pro Customer Support Phone Number

New and Renewable Energy

New and Renewable Energy
Your source for the New and Renewable Energy News and Technologies