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ETHANOL and BIOFUELS | Since
the early 2000's, ethanol and other biofuels have been seen as a
solution to our dependence on oil. This has proven not simply a
misguided course, but brought with it unintended consequences to the
world's food supply. It has been a distraction from focusing on clean energy sources as a means of powering our transport needs in the future. While
corn ethanol was originally believed to be a promising alternative to
petroleum, it has been largely discredited on several
counts. Now we need to determine if, and which, biofuels could be part
of the solution, and to what degree, if any, they would reduce greenhouse
gases. |
A
joint U.S. Department of Energy/U.S. Department of Agriculture study found that
1.3 billion tons of biomass, predominantly cellulosic feedstocks, could be
produced for biofuel production in the United States annually with only modest
changes in farming practices. This quantity of feedstocks could be used to
produce enough biofuel, mostly ethanol, to satisfy about one third of current
U.S. petroleum demand. The potential could be even larger if technology is
developed to take advantage of additional forms of biomass such as algae. link (The U.S.
became the world's largest producer of ethanol fuels in 2005. By 2010 the U.S.
produced 13.2 billion gallons of fuel, and including Brazil accounted for 88%
of world production that year. Most is produced using corn as feedstock.) However, the Earth Policy
Institute reports that the U.S., in a misguided effort to
reduce its oil insecurity by converting grain into fuel for cars, is
generating
global food insecurity on a scale never seen before. link
The chief of the United Nations Food and Agriculture
Organization has warned that rising food prices around the world have
threatened social unrest in developing countries.
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Latest news. Dec. 26 2011: Federal government finally kills corn ethanol subsidy. After $45 billion in subsidies since 1980,
ethanol subsidies end in U.S. The subsidy cut is accompanied by the end of a
tariff on the importation of Brazilian ethanol. Brazil has an excess of
sugarcane ethanol, but the U.S. government had previously penalized this fuel stream
as a means of allowing U.S. ethanol producers to escape competing on the free market.
link
August 2011: The ethanol
industry is due to lose some of its government support more than 30 years after
Jimmy Carter first began subsidising corn ethanol to encourage the development
of a homegrown plant-based fuel, Congress is expected to end $6bn in subsidies
during the debt deal negotiations. The subsidy had been directed to the oil
firms which incorporate ethanol into their products. Fuel sold at most US
petrol stations contains 10% ethanol. Ten years ago a lot of farmers invested
in corn and in ethanol plants and felt that corn farmers have had it pretty
good. But a five-year boom in corn ethanol production may be coming to an end, or
at least that is the hope of some campaigners. "I think we are at a
turning point. We are full to the gills with corn ethanol," said Jeremy
Martin, who studies biofuels for the Union of Concerned Scientists. [Iowa, which leads the country in corn
production, will use 58% of its crop for ethanol this year.] link
Below: - Technical problems with ethanol as a fuel
- Other issues including cost and food supply
- Political factors and subsidies
- Global ethanol production
- . . . "if you have to buy gas!"
| Technical problems with ethanol as a fuel |
August 2011: How Europe's biofuels policy threatens the climate. A
report for the European Parliament, which reviewed scientific research
in biofuels, including studies
undertaken for the European Commission, stated:
“All model exercises show that greenhouse gas emissions from ILUC (Indirect Land Use Change) caused by increased biofuel demands
are significant, and the range of respective results on greenhouse gas
emissions from ILUC is comparatively
small.” What has become clear is that when greenhouse gas emissions caused by ILUC
are included in the carbon footprint calculation of biofuels, the climate
benefits of these fuels compared to conventional fossil fuels can be negligible
or even negated. If
the ILUC is taken into account, the greenhouse gas emissions from some
biodiesels are not lower than the ones from fossil fuels, but higher link Greenpeace conducted a study between May and June 2011.(Greenpeace study)
Environmental Protection Agency and E15 decision. E10
was granted a waiver under Clean Air Act section 211(f)(4) more than 30 years
ago and is now ubiquitous in the marketplace, making up over 90% of the U.S.
gasoline market. E15 is a blend of gasoline with up to 15 vol% ethanol. Prior
to EPA's October waiver decision, the amount of ethanol
in motor vehicle gasoline was limited to 10 vol% (E10).. As of November 7,
2011, E15 is not registered with EPA and is therefore not legal for
distribution or sale as a transportation fuel. link June
2011: EPA approves E15 despite engine risk. The Environmental Protection Agency previously approved E15 -- 85%
gasoline and 15% ethanol -- for use in vehicles back to 2001 models. The
approved label is part of the EPA's final rule spelling out about how E15 can
be sold and what standards it must meet. E15 isn't available yet. EPA says sellers have
to first register their blends with the agency to be sure they meet a number of
standards. EPA says tests show E15 won't harm 2001 and newer vehicles, which
have hoses and gaskets and seals specially designed to resist corrosive
ethanol. But using E15 fuel in older vehicles or in power equipment such as
mowers, chainsaws and boats, can cause damage and now is literally a federal
offense. link Renewable Energy World's view of the E15 decision here. May 2010: Higher-ethanol blend will cause problems in many cars. The EPA is expected to issue a rule in the next few weeks that
would permit oil companies
to increase the percentage of ethanol in automotive fuel to 15%, up from
the current level of 10%, so they can meet EPA quotas for renewable
fuels. Automakers have opposed the change since the EPA first signaled it last
year. But now the industry says it has conducted tests that confirm the
higher-ethanol blend will cause problems in many cars. Half of the engines tested so far have had some problems, said C. Coleman
Jones, the biofuel implementation manager at GM, speaking for the Alliance of Automobile Manufacturers. link
April 2010: EU says biofuels can cause four times more carbon emissions. The
European Union, including the UK, has set a goal of obtaining 10% of
its road fuels from renewable sources by 2020. But a new report
commissioned in Brussels found some biofuels can lead to four times
more carbon dioxide polluting the atmosphere than equivalent fossil
fuels. Biofuels have already been criticised for causing food shortages
in countries where land for rice or wheat has been displaced by fields
of soy beans or sugarcane for fuel. Environmental campaigners say the
latest report proves the renewable energy source is also bad for
climate change. link | A recent recent
study by the Organization for Economic Cooperation and Development
concluded
that biofuels "offer a cure [for oil dependence] that is worse than the
disease." A National Academy of Sciences study said corn-based ethanol
could strain water supplies. The American Lung Association expressed
concern
about a form of air pollution from burning ethanol in gasoline. WallStreetJournal |
Bio-fuels: Biofuel
production
could actually double the amount of greenhouse gas emissions. While it
is clear
we need to reduce fossil fuel consumption, research shows that we could
reduce
global warming pollution two to nine times more by conserving or
restoring
forests and grasslands than by razing them and turning them into
biofuels
plantations. US Government support is projected to reach around
$13 billion
in 2008 and almost $16 billion by 2014. Money that could instead fund
critical
research into conservation and efficiency and proven solutions. link
| Other issues including cost and food supply |
April 2010: Corn ethanol mandates based on shaky assumptions. Federal
renewable fuel mandates have created an industry around corn ethanol
that now consumes nearly a third of the U.S. corn crop. But what is the
rationale behind those mandates in the first place? Several scientists
have asked and found the answers to be unsound. The EPA's own
analysis shows that, in the near term, natural-gas-powered,
dry-milled corn ethanol production results in an increase of greenhouse
gas emissions of 12 to 33% compared to gasoline. link Earth Policy
Institute:
The US, in a misguided effort to
reduce its oil insecurity by converting grain into fuel for cars, is
generating
global food insecurity on a scale never seen before. link
The chief of the United Nations Food and Agriculture
Organization has warned that rising food prices around the world have
threatened social unrest in developing countries.
Biofuels cause global warming. Almost all
biofuels used today cause
more greenhouse gas emissions than conventional fuels if the full
emissions
costs of producing these “green” fuels are taken into account, two
studies
being published in the journal "Science" have concluded. While ethanol and other biofuels have long been touted as a means of reducing
greenhouse gas levels, it turns out that they have precisely the opposite effect because of some unintended consequences. link
April 2011: Biofuels could kill 192,000+ per year in developing countries. World Bank research indicates
that the increase in biofuel production over 2004 levels would push more than
35 million additional people into absolute poverty in 2010 in developing
countries. Using statistics from the World Health Organization (WHO), estimates
indicate that this would lead to at least 192,000 excess deaths per year, plus
disease resulting in the loss of 6.7 million disability-adjusted life-years
(DALYs) per year. These exceed the estimated annual toll of 141,000 deaths and
5.4 million lost DALYs that the World Health Organization attributes to global
warming. Thus, developed world policies intended to mitigate global warming
probably have increased death and disease in developing countries rather than
reducing them. link
July 2011: Switching from corn to grass
would raise ethanol output and cur emissions. Growing
perennial grasses on the least productive farmland now used for corn
ethanol
production in the U.S. would result in higher overall corn yields, more
ethanol
output per acre and better groundwater quality, researchers report in a
new study. The switch would also slash emissions of two potent
greenhouse gases - Carbon dioxide and nitrous oxide. link
Why cellulosic ethanol and other biofuels are not sustainable. Alice Friedemann writes that erosion is happening ten to twenty times faster than the rate topsoil can be
formed by natural processes and in most places on earth, only six inches from desolation, for that
is the thickness of the topsoil layer upon which the entire life of the planet
depends. Fuels from biomass are not sustainable, are ecologically destructive, have a
net energy loss, and there isn’t enough biomass in America to make significant
amounts of energy because essential inputs like water, land, fossil fuels, and
phosphate ores are limited. Iowa has some of the
best topsoil in the world. In the past century, half of it’s been lost, from an
average of 18 to 10 inches deep. Productivity drops off sharply when topsoil reaches 6 inches or less, the
average crop root zone depth. Loss of topsoil has been a major factor in the fall of civilizations. You end
up with a country like Iraq, formerly Mesopotamia, where 75% of the farm land
became a salt desert. link | Political factors and subsidies |
August 2011: The ethanol
industry is due to lose some of its government support more than 30 years after
Jimmy Carter first began subsidising corn ethanol to encourage the development
of a homegrown plant-based fuel, Congress is expected to end $6bn in subsidies
during the debt deal negotiations. The subsidy had been directed to the oil
firms which incorporate ethanol into their products. Fuel sold at most US
petrol stations contains 10% ethanol. Ten years ago a lot of farmers invested
in corn and in ethanol plants and felt that corn farmers have had it pretty
good. But a five-year boom in corn ethanol production may be coming to an end, or
at least that is the hope of some campaigners. "I think we are at a
turning point. We are full to the gills with corn ethanol," said Jeremy
Martin, who studies biofuels for the Union of Concerned Scientists. [Iowa, which leads the country in corn
production, will use 58% of its crop for ethanol this year.] link July 2011: Ethanol - government largesse
with taxpayer dollars. Ethanol made from fermented corn starch plays a
more prosaic role in the U.S. these days, making up some 10% of national
passenger vehicle fuel. In fact, in 2010 the U.S. took roughly 40% of the
national corn crop and turned it into roughly 50 billion liters of the alcohol
fuel. That's up from roughly 190 million liters a year in 1979 and just 13.6
billion liters as recently as 2005. Between 1980 and 2000 the U.S.
government has devoted some $19 billion in tax breaks alone to the
ethanol-from-corn effort, according to the U.S. Government Accountability
Office. Expensive
subsidies.
In 2006, subsidies totaled $7 billion for less than 5 billion gallons. A
windfall profit for
corporate agribusinesses such as ADM. link
The economics of corn ethanol have never made much sense. Rather than
importing
cheap Brazilian ethanol made from sugar cane, the United States slaps a
tariff
of 54 cents a gallon on ethanol from Brazil. Then the government
provides a tax
break of 51 cents a gallon to American ethanol producers - on top of
the
generous subsidies that corn growers already receive under the farm
program. July 2010: Corn ethanol subsidy may be halted.
Efforts to continue a lucrative tax subsidy to the corn ethanol
industry, a long-time golden child in Washington, are failing in the
face of mounting evidence that it may not be worth the money. The
45-cent-per-gallon credit, which is set to expire in December 2010,
didn't make it into the current Senate bill focusing on the oil spill.
Earlier legislation would have preserved the subsidy for five years at
an annual cost of up to $6 billion. House alternatives would keep it at
36 cents for just one year. Environmental groups argue the tax credit
has funneled $21 billion to oil companies. link February 2010: EPA changes conclusions on ethanol. The EPA issued a new rule requiring U.S. companies to produce at
least 13 billion gallons of renewable fuels in 2010, up from about 11.1
billion gallons in 2009, Thirteen billion gallons is about 9% of overall
U.S. fuel consumption. Congress has set a goal of 36 billion gallons of
renewable fuel by 2022. Based on the 2007 Energy Independence and Security Act which required
renewable fuels’ lifecycle emissions to be at least 20% less than
gasoline's it appeared then that corn-based ethanol wouldn’t make the cut. An early EPA review
calculated that, with greenhouse gases from indirect land-use changes included,
most corn ethanol wasn't much better than regular gas. The EPA has now finalized the renewable fuel standard, with agency
Administrator Lisa Jackson announcing that corn ethanol will qualify after
all. The percentages are even higher for advanced biofuels, at 50% less, and
60% less for cellulosic biofuels. | The Union of Concerned Scientists wrote (2009) “Despite intense pressure from the corn ethanol industry to exclude emissions
from indirect-land-use change, the EPA found that such emissions are a major
source of heat-trapping pollution from corn ethanol and other food-based
biofuels. This finding affirms the view of more than 175
scientists and economists with relevant expertise, arguing that ‘grappling with the technical uncertainty and
developing a regulation based on the best available science is preferable to
ignoring a major source of emissions’.” |
Production of cellulosic ethanol, such as from wood chips and plant waste,
was supposed to hit 100 million gallons by 2010 but is only about 6.5 million
gallons now. Advanced biofuels such as algae are in their infancy. Instead, the
bulk of today's biofuel is corn ethanol. link
January 2007: President
Bush's
State of the Union message vowed to increase the supply of alternative
fuels by
setting a mandatory fuels standard to require 35 billion gallons of
renewable
and alternative fuels in 2017 with the emphasis on ethanol from corn.
Besides
evidence of catastrophic consequences to the world's food supplies and
prices
there is a danger in ethanol use for vehicles. Mark Jacobson, an
atmospheric
scientist at Stanford University in California, says studies found that
using
E85 will cause at least as much health damage as gasoline, which
already causes
about 10,000 premature deaths annually from ozone and particulate matter. link
Corn prices aren't stable to provide a secure source of alternative fuel. At $5 a bushel it's considered high enough to scare
potential
builders of ethanol factories. It was under $2 in 2006: in June 2008 Corn prices surged to a record with some contracts briefly topping $8 a
bushel for the first time as traders bet that a major swath of this year's corn
crop will be lost to Midwest flooding. link An
additional
problem is the difficulty of shipping ethanol through traditional
pipelines because traces of water and other impurities in pipelines
cause separation of ethanol-gasoline blends which can reduce engine
performance. link [As of November 2011 the price is around $6.50 a bushel - rates link.]
Piedmont
Biofuels: For biofuel information in North Carolina - click here. March 2009 Georgia Power wins approval to switch coal plant to biomass power. - Georgia Power Company will convert its Plant Mitchell Unit 3 from a coal-fired power plant to a biomass power plant. The facility will be able to produce 96 megawatts
of power once the conversion is completed in June 2012, making it one of the
largest biomass power plants in the United States. link
| Global ethanol production |
February 2011: The Global Renewable
Fuels Alliance (GRFA) released its global annual ethanol production forecast that
ethanol production in 2011 would hit hit 88.7 billion litres (23.5 million U.S.
gallons) replacing the need for one million barrels of crude oil per day
worldwide, highlighting the growing impact that ethanol production is having on
reducing the world's reliance on crude oil. The
United States continues to be the largest ethanol producer in the world with
production levels expected to reach over 51 billion litres (13.5 U.S. gallons)
in 2011. The African continent is forecast to produce 170 million litres of
ethanol in 2011, despite sub-Saharan Africa having one billion hectares of rain
fed, crop producing land that could be producing biomass for ethanol according
to the United Nations Food and Agriculture Organization. link
Global ethanol
production.
In 2005, global ethanol production was 9.66 billion gallons, of
which Brazil produced 45.2 percent (from sugar cane) and the United
States 44.5
percent (from corn). Global production of biodiesel (most of it in
Europe),
made from oilseeds, was almost one billion gallons. The push for
ethanol and
other biofuels has spawned an industry that depends on billions of
dollars of
taxpayer subsidies, and not only in the United States. Filling the
25-gallon
tank of an SUV with pure ethanol requires over 450 pounds of corn --
which contains
enough calories to feed one person for a year. Council on foreign relationssl ethanol producti July 2010: Biomass gains traction in Africa and Sweden. New
studies show that bioenergy can be produced on a significant scale in
many parts of Africa without affecting food production or natural
habitats. Another study finds that currently Sweden derives 32% of all its power from biomass,
and aims for 50% of total energy consumption from renewables by 2020. link
|
. . .if
you have to buy gas . . . |
Socially
responsible rankings for gas stations: June 2010 - BP has been downgraded to a D.
As of mid-June 2010 new rankings have been applied where no company
qualifies for an A rating. Check other companies here. Sunoco is still highest ranked at B+ An up-to-date report from the Sierra Club
also ranks Sunoco high and reports on other companies giving BP a
"dishonorable mention" based on the Deepwater Horizon leak. Finally you can read "Which is the most ethical oil company?" here
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