Ecologically catastrophic. Or is it?
Now, in a conundrum not seen since medieval
scholastics debated how many angels could fit on the head
of a pin, we have What Would Greta Thunberg Do? An reductio ad
absurdum so thickly layered, so powerfully fraught that the most
intelligent minds of our day will be driven utterly mad.
To wit, researchers in Newcastle, England just discovered a
biofuel cleaner, better, more cost-effective, powerful and
theoretically more renewable than old french fry grease. The holy
grail? Shangri-la? Let us go
ourselves to that Jolly Pendulum and learn.
A new paper by a team of researchers from Newcastle
University in England describes a cheaper, if controversial,
alternative source for biodiesel: shark livers.
Livers can make up to 30 percent of a shark’s body mass and
sharks are a large fraction of by-catch in many fisheries. Since
livers are often a waste product of fisheries—and are sometimes
even dumped at sea because of their low value—they have potential
as an inexpensive source material for biodiesel. As well,
extracting the oil is relatively simple. When placed in the sun,
the livers melt, releasing the fatty oil that can be mixed with a
catalyst and alcohol to make a commercial grade of
biodiesel.
While it sounds like a plausible way to use an
often-discarded waste product, there are potential problems with
the idea. Of primary concern is the difficulty determining the
source species for the oil and whether the livers were a byproduct
of a legal fishery or the target of an illegal one.
“I would hate to incentivize killing sharks for fuel,” says
Adam Harvey, a coauthor of the paper, adding that “if the sharks
are already dead, it’s best to get as much a value out of them as
possible.”
From an economic standpoint, if a market develops for
another use of shark livers, it could contribute to collapsing
shark populations, making the potential shark liver biodiesel
industry short-lived, cautions Simpfendorfer. From an ecological
standpoint, it would be catastrophic. He adds, “the next step is to
make sure we don’t dive into this without thinking very critically
about it.”
Now, back to dear Greta. I don’t know that she has any great
love for sharks and might well sacrifice them for a cooler climate
but… if the shark’s decimation could contribute to a catastrophic
ecology then I can’t imagine she’d be pleased.
So?
WWGTD?
Word of caution, Elon Musk has already been driven utterly mad
pondering this enigma.