
Sweden's Tommy Tuvuynger and his team of professional hunters don't
have to go far to find their prey. Tuvuynger is employed to keep down
rabbit numbers in the Swedish capital, Stockholm. The rabbit population
there has exploded over the past few years thanks to owners setting
free their pets. Last year the eradication squad killed 6,000 of the
furry critters, which are not native to Sweden. When the city started
killing the rabbits in 2006, officials realized they would have to
dispose of their carcasses. At around the same time, the European Union
passed a law that makes it illegal to dispose of raw meat or carcasses
in landfills. Solution: use the bunnies as fuel to heat Swedish homes.
When German newspaper Der Spiegel broke news of the
novel fuel source last month, many Swedes were outraged. "It feels like
they're trying to turn the animals into an industry rather than look at
the main problem," says Anna Johannesson of the Society for the
Protection of Wild Rabbits. Johannesson and other wildlife campaigners
recommend spraying the park with a chemical that makes shrubs and
plants unappetizing to the animals. Tuvuynger, though, has little
sympathy for that argument. "If you do that you only move the problem
100 meters away. Overpopulation is not good for the animals' well-being
because they use up limited natural resources for survival, so shooting
them is the only answer." (See pictures of 10 species near extinction.)
It's not just rabbits that are being used to heat homes. Reindeer,
moose, horses, pigs and cows are all thrown into an incinerator run by
a firm called Konvex near Lake Vanem, southeast of Stockholm. Using a
new method that was developed with the help of E.U. funding, raw animal
material is crushed, ground and then pumped into a boiler where it is
burned together with wood chips, peat or other waste to produce heat.
"It is an efficient system as it solves the problem of dealing with
animal waste and it provides heat," says Leo Virta, the managing
director of Konvex. "The main part of this fuel is coming from cows,
pigs and moose. Rabbits are only a small part of the total volume. We
take the raw animal material, mince it up into small pieces and add
some formic acid. We then take the fuel and deliver it to the heating
centers. One hundred thousand tons of raw material can generate enough
heat for 11,000 homes a year."
While killing animals to use them for fuel is rare in Europe, using
animal by-products as fuel is now normal practice thanks to the E.U.
law about disposal of raw meat and carcasses. Offal and other
by-products must be incinerated or treated by approved waste-disposal
companies. Not only does that help Europe meet its ambitious green
energy targets, it also aids in the E.U's bid to reduce landfill waste
levels by 35% by 2020. (See the top 10 green ideas of 2008.)
The law is already having an impact. In Britain, big supermarkets
send unsold and expired meat to companies that convert it into fuel to
heat homes. Since 2001, the German biofuel company Saria takes greasy
animal fats and cooking oil from caterers and restaurants and then
turns it into renewable energy used for power stations and
manufacturing plants. Saria found using animal oil instead of vegetable
oil is not only a cheaper alternative, but it also produces less
harmful emissions, delivers better engine efficiency and reduces noise
pollution.
Corporate America is getting into the animal-based biofuel market
as well, thanks to U.S. government subsidies. Like Europe, the U.S. has
a law that bans dumping raw meat into landfills. In July 2007, energy
company, ConocoPhillips teamed up with meat giant Tyson to make biofuel
from chicken and pork fats that would otherwise have been added into
makeup, pet foods or soaps. Although biofuel produced from animal fat
is better suited to fueling industrial boilers than cars, Tyson and
ConocoPhillips have come up with a fuel for the "on-road" market. (Read: "Tallying Biofuels' Real Environmental Cost.")
In Sweden, Tommy Tuvuynger takes a pragmatic view of the trend.
"People like the rabbits because they are pretty. What else can we do
with them though? We can't give them bunny birth control pills. So we
have to put the rabbits away."
Thoughts?
Posted by
on Nov. 28, 2009 at 1:35 PM
- stormcris
on Nov. 28, 2009 at 1:35 PM