Science
Wind Turbines Murdering Bats By Popping Their Lungs
Posted by John Mahoney at 9:00 AM on August 26, 2008
On the list of ways to go, having your lungs explode is definitely on the gnarlier side. Too bad for bats in treehugging locales, though, because that's what's happening to them, due to a pretty serious error with their awesome echolcation systems crossing with the seemingly benign forces of Bernoulli's principle put into motion by the turbines' huge spinning blades. Ouch all around.
What happens is the bats' internal echolocation, which tracks movement, attracts them to the blades of wind turbines, which presents another fairly obvious problem. But a University of Calgary researcher, puzzled by bats dying off in large numbers around wind farms in southern Alberta has found that those that don't get cut down by the blades (surprisingly only 50%) are actually dying from exploded lungs, or barotrauma; the low pressure areas around the spinning rotors, as explained by our friend Bernoulli, cause the bats' tiny air sacs to burst. Even those that do get knocked out of the sky by the blades have their lungs popped beforehand--of the 188 dead bats in the study, 90% had barotrauma as the cause of death.
I'm thinking this is going to have to remain one of those problems without an immediate solution. Hopefully the bats will evolve to realise that the massive spinning turbine blades do not equal a tasty insectoid meal. [New Scientist, Photo: Zeusandhera]

Comments (AU Comments · US Comments)
There are currently no AU comments for this post.
UniComp
Posted 9:35 AM 26/8/08
Shhh!! No one tell the Joker.
UniComp
Curves
Posted 9:32 AM 26/8/08
Oddly enough, just last week a bat got into my office and my lungs nearly burst from screaming for help.
Curves
Stem_Sell
Posted 9:28 AM 26/8/08
Da-da-da-da-da-da-da-da-da-da-daaah... BATFAN!
Stem_Sell
EBone
Posted 9:28 AM 26/8/08
I've spent a lot of money studying bats and wind turbines, as well as just about every kind of bird as well. Some of our winged friends are going to get killed because of wind turbines. But plenty of birds get killed by flying into the sides of glass office buildings and car windshields, and no one is trying to stop them from being built. We are studying ways to "repel" bats with sound technology, but it's still in the preliminary stages.
Bat species in the US aren't endangered or threatened, even remotely. They just happen to be mammals, and that's enough to get some people into an uproar. Millions of bats that live just in one hernaculum live far better lives than the poultry we raise for food.
I know I'm switching species here, but I attended a wind energy conference last year, and one of the speakers was the National President of The Audubon Society. He stated that his organization's position going forward was to not oppose wind energy facilities, because the threat of global warming far outweighs the incidental number of birds killed annually by wind turbines. At least that's some progress.
EBone
yogibimbi
Posted 9:24 AM 26/8/08
@ripfire: that way they won't evolve:-(
yogibimbi
yogibimbi
Posted 9:23 AM 26/8/08
well, for once, the bats will surely evolve. Problem is, will us human beings evolve quickly enough to leave burning oil behind, decrease our population to a more adequate size for the planet and, in general, not behave like we have a second Earth hidden away in storage. It is very interesting how those concrete-tech-freaks become green all of a sudden when they line up animals killed by green energy, just to give their fossile and nuclear options another ten years before they finally run out completely.
yogibimbi
Sniperpackage
Posted 9:21 AM 26/8/08
@Xavoc: He was the first to go.
Sniperpackage
ripfire
Posted 9:18 AM 26/8/08
I have a solution: shoot the bats even before they come close to the turbine blades.
ripfire
TheSonOfKrypton
Posted 9:18 AM 26/8/08
And once again, ignorance of Bernoulli's equations owns the ignorant....High velocity fluids = Low pressure zones....Get wit' it or get lost daft creatures!
TheSonOfKrypton
GadgetPlay
Posted 9:15 AM 26/8/08
@enchantedgoose: Yes, but you might have to chuck the little buggers in one at a time.
GadgetPlay
bms
Posted 9:14 AM 26/8/08
Damn tree huggers. Can't they just leave well enough alone?
bms
BiZarRroBALlmeR
Posted 9:11 AM 26/8/08
I think it's aliens. first it was cow mutilations, now this.
I mean, come on, barotrauma?
BiZarRroBALlmeR
takashimiike Ultimate
Posted 9:08 AM 26/8/08
@enchantedgoose: Not really.
takashimiike Ultimate
Xavoc
Posted 9:05 AM 26/8/08
Where is batman? Why isn't he saving his friends from the evil villainous wind farms?
Xavoc
qbrad
Posted 9:05 AM 26/8/08
Bats' health is to wind turbine as fish health is to water turbine. SAT's here I go!
qbrad
PastorDoodah
Posted 9:05 AM 26/8/08
Why can't we just put something on the blades that sounds like a bat-eater? Or would that cause problems during bat-eater mating season?
PastorDoodah
mruler360
Posted 9:04 AM 26/8/08
Nahnahnahnahnahnah.... Batman! *POP*
mruler360
enchantedgoose
Posted 9:04 AM 26/8/08
so if i have a bat problem in my attic if i put huge fans up there theyll all die?
enchantedgoose
takashimiike Ultimate
Posted 9:03 AM 26/8/08
When at least he went out laughing. Gnarly!
takashimiike Ultimate
frigg
Posted 9:52 AM 26/8/08
@johnnyabnormal: I have a feeling that recording of Riley would do the trick.
frigg
frigg
Posted 9:49 AM 26/8/08
It's like finding out hydrogen-powered cars inadvertently kill rats.
frigg
johnnyabnormal
Posted 9:45 AM 26/8/08
Damn. I hope there's a sound that can repel them from the turbines. @Those looking to get rid of bats: Go ahead, just don't start bitching about your black fly, mosquito and horsefly problems once you've killed their predator. Bats and spiders are always welcome in my home. :)
johnnyabnormal
ShinySideUp
Posted 9:43 AM 26/8/08
A propellor or wing creates a slight pressure differential, not a full on vacuum. Are they really that sensitive?
ShinySideUp
gamecrazychris
Posted 9:43 AM 26/8/08
I'd like to see a video of this on youtube. POP
gamecrazychris
mildretard
Posted 10:52 AM 26/8/08
You have any idea how many field mice and other cute prairie fauna get minced by combines and harvesters whilst *ahem* harvesting?
Might as well heap it all on at once folks.
mildretard
Arvin Bautista
Posted 10:45 AM 26/8/08
Let's hope that they evolve before we're overrun by the mosquitoes those guys eat for dinner.
Arvin Bautista
markarian
Posted 10:44 AM 26/8/08
Wind Turbines may kill birds and bats, but I wonder how many animals die due to the pollution caused by burning coal and oil?
markarian
Crazymonkey
Posted 10:34 AM 26/8/08
There's nothing we can attach to the blades like those deer repellant thinger-ma-bobs that you put on your bumper?
Crazymonkey
johnnyabnormal
Posted 10:31 AM 26/8/08
@frigg: Very true. OR I could stand under the turbines with a P.A. system and read some long comment threads from Gizmodo out loud. The disemvoweled comments might be challenging, but I think I could get a few threads in before my own lungs pop.
johnnyabnormal
Hiphopopotamus
Posted 10:30 AM 26/8/08
@EBone: Just to be picky - the threat of global warming isn't killing anything. In some courts a threat can warrant lesser degrees of assault charges, but you won't even have a chance of battery, let alone manslaughter or homicide (avicide?)
Hiphopopotamus
philbert
Posted 10:25 AM 26/8/08
I dunno... But to me it's a bit morbid to joke around about dying animals. Nuts to posters with bad taste! Only joke at a person's bad fortune! Bats can't blog back and call you a c**t!
philbert
BiZarRroBALlmeR
Posted 10:10 AM 26/8/08
This can only be the dastardly deed of non other than Environmentally Friendly Man.
BiZarRroBALlmeR
jrog
Posted 10:09 AM 26/8/08
@EBone:
Yeah, the "threat of global warming"... It's like that south park episode, the day after two days before tomorrow. "GLOBAL WARMING IS COMING!! RUN, GLOBAL WARMING IS GONNA GET YOU!!"
I have to agree with Johnnyabnormal, think about about the problems that come as a result of a decrease in the bat population.
Also, people are going to complain no matter what we do. There are certain types of people that will never be happy.
jrog
johnnyabnormal
Posted 11:18 AM 26/8/08
@doofusgumby: Another reason I live on the West coast. If I mountain bike in Maine, I get chased for miles by huge horse flies the size of quarters. If they land on you and start chewing, blood starts running down your arm.
johnnyabnormal
Buddha916
Posted 11:02 AM 26/8/08
@Arvin Bautista: which of course carry avian bird flu, which of course is the latest "pathological threat" to the human race, and of course would be better controlled only by dumping huge amounts of pesticide into the wilds which of course would end up killing off some other species that we need further spiraling us into the death of mankind......
large propeller wind turbines are the most in-efficient way to harness wind energy in the first place. The only way to make them even somewhat payback is to make them as big as possible.
Instead, a rotary horizontal turbine, as used in hydro-electric power, can be built that is both more efficient for smaller size and smaller and could be installed on nearly every building instead.
of course, this would be counter to the desire of the "environmentalists" as they don't make for good "Vista-shots" of huge numbers of massive structures stretching across the landscape proving our dedication to alternative energy.
Buddha916
doofusgumby
Posted 11:01 AM 26/8/08
@UTnick: didn't they say this was in cananda? do they even have bugs in canada? that was the only reason i might move up there -- was for the lack of skeeters.
duuuude. go up there in summertime. you'll be eaten ALIVE. at least out where farming happens and trees grow, and the tundra. man they're agressive as hell.
doofusgumby
doofusgumby
Posted 10:59 AM 26/8/08
more nukes, damnit. and with cooling towers to prevent thermal shock die-offs.
doofusgumby
UTnick
Posted 10:58 AM 26/8/08
didn't they say this was in cananda? do they even have bugs in canada? that was the only reason i might move up there -- was for the lack of skeeters.
ps
coal burns a lot cleaner than folks might think.
UTnick
roflwaffles
Posted 11:42 AM 26/8/08
ARE YOU HAPPY NOW HIPPIES?!
roflwaffles
Q
Posted 12:12 PM 26/8/08
Burn the dead bats for fuel FTW!
Q
ab3
Posted 12:37 PM 26/8/08
Again this is why we need more nuclear power.
ab3
Lev_Astov
Posted 12:51 PM 26/8/08
@Mark 2000: That's a really good idea. There probably is a frequency that would mess with their echolocation and keep them from being attracted to the blades or any bugs in the area, thus making them leave to find food.
Lev_Astov
Mark 2000
Posted 12:40 PM 26/8/08
isnt there a sound frequency that will drive them away?
Mark 2000
johnnyabnormal
Posted 1:25 PM 26/8/08
@ab3: Screw nuclear for the long run, although it could get us over the hump to something like this:
+ Watch video
johnnyabnormal
damnElantra
Posted 1:08 PM 26/8/08
@Mark 2000:
@Lev_Astov:
dog whistles. im sure there is a similar frequency for bats. just mount a few of those at the tips of the constantly rotating blades and the noise will be made as long as the blades force air through the whistle
damnElantra
Hello_Newman
Posted 2:57 PM 26/8/08
France has had nuclear for 30 years without an accident. As for the bats, screw em, we'll figure out what frequency to blare a signal to keep them away, not like they are endangered. We can't weep over every freaking thing that happens in this life.
Hello_Newman
sharmanova
Posted 3:22 PM 26/8/08
@johnnyabnormal:
You did not just put up Pravda piece vilifying tailing ponds did you? Come on man....
The funny thing about the bats, and it isn't funny at all, is that I was just thinking about how the Law of Unintended Consequences is going to come back and bite us all on the ass in a way that we never thought or conceived of in our attempts to deal with contrived junk science issues like global warming rather than combating real issues like population growth and the fact that the return of the sunspots (the real determining factor in global climate) are long, long overdue. For ever action there is a reaction, and nature doesn't care if our intentions were good or bad.
sharmanova
johnnyabnormal
Posted 3:12 PM 26/8/08
@Hello_Newman: I'm tellin' you...without bats eating bugs, we are screwed. Not just discomfort, but think of the diseases. Btw, some are endangered, but I'm not sure if any are up in Canada. It's easy to dismiss the little guys, but they all have a very important purpose most if the time, unless they are a non-native, invasive species.
johnnyabnormal
doobiebros2two
Posted 3:38 PM 26/8/08
Green Gizmodo Sponsored by Chevy
lol
doobiebros2two
FinalValgas
Posted 4:27 PM 26/8/08
*Flap**Flap**Flap*... POP!
FinalValgas
kydrice
Posted 4:25 PM 26/8/08
waiting for someone to replace that speech bubble with "ROFLS"
kydrice
johnnyabnormal
Posted 5:33 PM 26/8/08
@FinalValgas: I laughed so hard at that, then felt so guilty at the same time.
johnnyabnormal
johnnyabnormal
Posted 5:32 PM 26/8/08
@sharmanova: No no no...tailing ponds? No way. EGS (enhanced geothermal systems). You should watch the vid.
Funny thing is, there's no proof behind your "junk science" claim on global climate change + the sunspot warming hypothesis is thoroughly debunked by not only climatologists, but astrophysicists as well.
BUT!!
I will give you enormous props for listing overpopulation. Before you get any ideas that I want to start knocking people off: I think population control is much more simple...have one kid. Even if everyone just had two, the population would go down. That would involve the rhythm method for those of us with good skills/timing or contraceptives...which we all know is pesky business with religion in tow.
Btw, when the hell do we get some beers? I thought doobie was buying...
johnnyabnormal
johnnyabnormal
Posted 5:24 PM 26/8/08
@doobiebros2two: Seriously, right!? Crazy.
johnnyabnormal
pardyhardy
Posted 5:53 PM 26/8/08
That's actually really surprising and sad. Maybe a deterrent echo frequency can be developed in wind farms, or the illusion of a bat predator to scare them away from the area. Less bats = more bugs. Elch.
PS GO UNIVERSITY OF CALGARY... it's about time we got some street cred.
pardyhardy
strider_mt2k
Posted 9:29 PM 26/8/08
Do you have any idea how many bats die from flying into the side of Nuclear Reactors each year?
I don't either.
What the hell eats bats -giant apes or something?
Put some of those up there.
strider_mt2k
OMG! Ponies!
Posted 9:59 PM 26/8/08
Perhaps the bats should start wearing hockey pads...
OMG! Ponies!
jtan
Posted 10:26 PM 26/8/08
bats are sensitive to sound. Put some kind of speaker playing owl hoots or whatever it is that preys on bats on the turbine. Alternatively, Panic at the Disco... will repel anything with a pulse.
cheaper way: put a really annoying whistle at the tip of the turbine
Bats aren't bugs!
jtan
Kaiser-Machead's WALL-E fetish
Posted 10:43 PM 26/8/08
@jtan: That might actually work.
Kaiser-Machead's WALL-E fetish
hagrun
Posted 11:20 PM 26/8/08
Put sound devices that screw with their location methods on the turbines. They will probably just avoid the whole area. Assuming they don't use much power it would be worth a try.
hagrun
DeanOfAllTrades
Posted 11:13 PM 26/8/08
It's still free power. Plus they're just flying rats anyway.
DeanOfAllTrades
tarrantm
Posted 11:13 PM 26/8/08
Has anyone tried the sonic repellers that you can buy at costco that repel rats, mice, roaches and other vermin when you plug them in? They work against bats too.
Seriously you people, just plug one of those things into each wind turbine. Wtf is with you trying to spend millions on a solution when one already exists. It's like trying to invent a pen that writes in space all over again.
tarrantm
Sean Robertson
Posted 12:03 AM 27/8/08
Seems to me it'd be easy enough to come up with some kind of sound that annoys the bats and keeps them away from the blades.
To those saying they don't care about the bats - they're the biggest consumers of mosquitoes around, we should do all we can to help them. ;-)
Sean Robertson
Nemesisesq
Posted 11:53 PM 26/8/08
I guess bats don't matter do they hippie
Nemesisesq
The_Archon
Posted 12:26 AM 27/8/08
Awful lot of hate against the bats going on here, anything that EATS MOSQUITOES is ok in my book. I even go out of my way to feed spiders.
Granted, their guano can cause uncurable respiratory diseases, and I'm a chronic bronchitis kind of guy, but I still have lots of affection for bats.
Also: I highly doubt the lower pressure makes them literally go "POP", they probably just hemmorage.
The_Archon
Ike_Skelton
Posted 12:25 AM 27/8/08
There are already all sorts of noise issues related to wind turbine siting and adding anything to the turbine that is audible to the human ear will probably not fly unless the turbines are sited in remote locations far away from civilization (no farm houses, nobody living near them).
Ike_Skelton
Ike_Skelton
Posted 12:59 AM 27/8/08
And who is doing the siting on these wind farms anyway? Aren't they doing any sort of habitat assessments to see what the potential impacts to wildlife (bats) are before installing them? There are ways to mitigate the impacts to bats and other flying creatures if you look at a few different sites as options. Maybe this was the best option though, who's to say?
Ike_Skelton
zenpoet
Posted 12:51 AM 27/8/08
@PastorDoodah: That was my first thought as well. Just add a noise scary to bats, and I would assume that it can even be sub or super sonic to human hearing.
zenpoet
aec007
Posted 1:11 AM 27/8/08
Drill... Drill now dammit!.
aec007
EBone
Posted 2:18 AM 27/8/08
@jrog: @Hiphopopotamus: I'm not actually a big believer in global warming. My point was that the wind energy industry finally caught a break from the bird huggers, and now we're being trashed by the bat lovers.
As I stated above, no bat species in the US are in any danger of becoming threatened, let alone extinct. Yet the bat "lobby" is pushing for the suspension of wind energy permits until they can do more "research," which they want my industry to fund, because no federal or state government considers them threatened so they aren't funding any studies.
EBone
dwarfgoat
Posted 2:12 AM 27/8/08
Of course, the downside of putting any kind of sonic bat repellant on or near wind turbines will be the rise of a new species of mosquito, more vicious than all the rest, who will only inhabit windfarm zones, eating alive all who may live nearby. Woe be unto those who may shun the bats!
dwarfgoat
stjnky
Posted 2:56 AM 27/8/08
Maybe we can get biofuel from all the dead bats.
stjnky
Enochrewt
Posted 3:18 AM 27/8/08
@strider_mt2k: Now that's an idea! Tie giant bat-eating apes to the wing of each turbine. That'll learn those bats.
Enochrewt
cmantito
Posted 4:46 AM 27/8/08
@Enochrewt: o.O .... But... that'll slow the turbines too much..
cmantito
phor11
Posted 6:05 AM 27/8/08
Sounds like we'll have to erect giant nets around each wind turbine.
*looks for a job in the soon to be booming net industry*
phor11
DJTripleRRR
Posted 6:04 AM 27/8/08
How the hell did they manage to get that picture... I mean is that bat dead or alive.
DJTripleRRR
rubasrv
Posted 7:25 AM 27/8/08
Yet we continue to do things easier for insects to take over the world.
rubasrv
VideoVampire
Posted 7:47 AM 27/8/08
Holy spinning blades Batman, your new enemy is ....WindmillMan!
VideoVampire
Impetuous_Vigor
Posted 10:43 AM 27/8/08
I always thought bats would support the "green" movement, I'm a bit disappointed in them.
Bat falcons and Bat hawks shall be deployed around such turbines for determent.
Of course the birds will have to be turbine-proofed before deployment.
Impetuous_Vigor
johnnyabnormal
Posted 5:26 PM 27/8/08
@Everyone: One wonders if the solution is as simple as a chicken wire cage around the blades? I can't imagine it would slow the wind too much? I could be wrong.
johnnyabnormal
bts
Posted 3:07 PM 26/8/08
I went to read the article, but I couldn't get past the word "echolocate". I kept reading that as "e-chocolate". So now I'm eating chocolate and have forgotten all about the bats.
bts
unspellable
Posted 10:39 AM 28/8/08
@PastorDoodah: Exactly. Water treatment plants play the sounds of a dying gull to ward off other gulls. And, guess what? It works!
Maybe there's common noise a dying bat makes that'll not attract other bats.
unspellable
johnnyabnormal
Posted 9:14 AM 29/8/08
@unspellable: You know bats are more important than human fetuses, right? JUST KIDDING.
johnnyabnormal
m0unds
Posted 12:44 PM 31/8/08
@DJTripleRRR: click the photo credit link. the little dude's still kicking..or he was when he was "evicted" from that person's house. hopefully he hasn't flown by any wind turbines since.
m0unds