Bloomberg: Climate Change Will Cause US Cities to be Overrun by Rats

Edal Anton Lefterov – Own work
A rat in а street of Sofia
CC BY-SA 3.0
Created: 1 August 2011

Guest essay by Eric Worrall

According to Bloomberg columnist Faye Flam, “climate change” simply isn’t scary enough; so they’re trying new ways to frighten their readers.

Climate Change Is Scary; ‘Rat Explosion’ Is Scarier

Scientists warn of global warming of 2 degrees Celsius. If you think that won’t affect you, think how it may affect pests.

By Faye Flam
31 October 2018, 01:02 GMT+10

What’s so scary about climate change?

How about “rat explosion”?

As the climate warms, rats in New York, Philadelphia and Boston are breeding faster — and experts warn of a population explosion.

The physics of climate change doesn’t have the same fear factor as the biology. Many living things are sensitive to small changes in temperature, so warming of 2 degrees Celsius will transform the flora and fauna that surround us in a big way. Other life forms are also very sensitive to moisture, and so populations will crash or explode as anthropogenic climate change continues to make wet areas more sodden and dry areas, more parched.

In recent years, psychologists have accused conservatives of being more innately fearful than liberals, but that never quite squared with the fact that conservatives express less fear over environmental problems. Some social scientists are finally starting to question the broad equation of political preferences with fear, recognizing that different people fear different things depending on their upbringing, education and surroundings. But we’re all sharing this warming planet, and at the very least surely we can unite against a future filled with rats.

Read more:

One question Faye – why hasn’t this overwhelming rat explosion you say will happen in New York, Philadelphia and Boston already happened in southern states?

Why isn’t the tropical region where I live utterly overrun by rats?

The reason of course is nature abhors an untapped food source. Any explosion in rat population is rapidly followed by an explosion in the population of predators which eat the rats. My town on the edge of the tropics abounds with all sorts of wildlife running around at night – small lizards which eat insects, urban foxes and cats which eat rats or other small vermin.

Climate fantasists like Faye seem to think in straight lines – if a few warm days leads to a rise in rat population, a lot of warm days will produce even more rats. But in the real world, rats are a problem caused by useless city officials letting the sidewalks overflow with trash, not climate change. In tidy, well managed cities, rats are never a problem, even in warm climates.

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November 4, 2018 12:25 pm

Paris, France can’t get any worde

Reply to  Eric Worrall
November 4, 2018 1:17 pm

Any animal that ate dog excrement could make a killing from what I saw, when I visited.

Steve (Paris)
Reply to  Luke
November 5, 2018 9:48 am

Alas too true.

Bryan A
Reply to  Steve (Paris)
November 5, 2018 10:57 am

Gotta fix the title of the article
Climate Change Will [Cause] US Cities to be Overrun by DEMOC-Rats

Bryan A
Reply to  Steve (Paris)
November 5, 2018 12:12 pm

[Thanks Mod]

Gary Ashe
Reply to  vukcevic
November 4, 2018 12:32 pm

You want to bet on that ?.

”’Paris, France can’t get any worse”’

Bryan A
Reply to  Gary Ashe
November 4, 2018 1:01 pm

Don’t tell that to Faye Flim Flam, she’ll go nuts trying to wrap her mind around the concept

Reply to  Gary Ashe
November 4, 2018 3:31 pm

San Francisco got worse, and it’s not just dog poop, nor rats…..

Sam Pyeatte
Reply to  Paul
November 5, 2018 10:24 am

I am just amazed at how “ratty” Bloomberg is looking now-days in the picture. His tail is dragging.

Joel O’Bryan
Reply to  vukcevic
November 4, 2018 3:42 pm

Ever watched Ratatouille?

Apparently a true story. I swear.

Johann Wundersamer
Reply to  vukcevic
November 5, 2018 2:42 am
Gary Ashe
November 4, 2018 12:29 pm

Thought the coastal ones all ready were, blue ones.

A purely political jab.

Farmer Ch E retired
November 4, 2018 12:30 pm

Wasn’t the LIA a time when rats moved indoors bringing fleas and the plague? If anything, we need to fear a colder world.

John Tillman
Reply to  Farmer Ch E retired
November 4, 2018 12:33 pm

Not the plague, but flea-borne typhus is on the rise in the US, thanks to cities’ tolerating homelessness:

Tom Halla
Reply to  John Tillman
November 4, 2018 12:34 pm

Wouldn’t that be lice for typhus, not fleas?

David Chorley
Reply to  Tom Halla
November 4, 2018 7:30 pm

Typhus is tick-borne

Tom Halla
Reply to  David Chorley
November 4, 2018 7:37 pm

Have you ever heard of Hans Zinsser’s book, Rats, Lice, and History? Typhus is spread by lice, or was primarily in European epidemics.

John Tillman
Reply to  Tom Halla
November 4, 2018 7:51 pm

Epidemic typhus is usually louse-borne.

Murine typhus is flea-borne.

Reply to  John Tillman
November 4, 2018 8:12 pm

That can’t possibly be true because democrats seem pretty sure that tent cities are illegal.

John Tillman
Reply to  philincalifornia
November 4, 2018 11:16 pm

Depends upon who’s in the tent cities.

Illegal immigrants can’t legally be housed in tent cities, but US citizens can be.

The article linked also points out that other vector-borne diseases are on the rise thanks to illegal immigration.

Paul r
Reply to  John Tillman
November 4, 2018 11:47 pm

Didnt they also say a warmer climate would extend the cat breeding season? So more cats to eat more rats. Problem solved.

Reply to  Paul r
November 5, 2018 3:45 am

Exactly. They need to stop with the catastrophizing (no pun intended)

Reply to  Farmer Ch E retired
November 4, 2018 2:58 pm

Actually only Black Rats Rattus rattus spread plague, not the common Brown Rats Rattus norvegicus.

Komrade Kuma
Reply to  tty
November 4, 2018 5:24 pm

What about the plague of disinformation spread by Rattus Mediocrite such as the Bloomberg rodent Fay Flam? BTW, is that its real name?

Between the faux sience/fake news flim flam and the yap, yap, yapping of the polemic poodles its hard work to find something in the msm worth one’s attention.

Reply to  tty
November 4, 2018 6:20 pm

There is some evidence, tty, that Rattus rattus aren’t that important in plague (well, maybe in Madagascar). Certainly, in Asia and the US sylvatic plague has nothing to do with Black Rats – and they seem to die very quickly from plague (like prairie dogs) and so aren’t really likely reservoirs. If Black Rats were important, then why don’t we see plague in Western cities? I’m neutral, and the study discussed here does use tree rings so caveat, but I wonder about the consensus:

Reply to  DaveW
November 5, 2018 4:46 am

No, it’s true that Black Rats probably did not transmit the medieval plague epidemics. They spread much too fast for that and affected areas where Black Rats did not occur. However those were due to an extinct variety of Yersinia pestis that apparently was more easily transmitted person-to-person.

This form apparently became extinct in the 18th century:

The extant Yersinia pestis have natural reservoirs in a variety of rodents and lagomorphs. Transmission in Asia is still largely through Black Rats. In the Southwestern US mostly from rabbits (frequently by hunters who happen to cut themselves while skinning a rabbit) though rat-transmitted plague occurred as recently as 1925 in LA.

Reply to  tty
November 4, 2018 9:04 pm

Actually only Black Rats Rattus rattus spread plague,

Gollly gosh! And to think that all these years I was thinking it was their pets which did the spreading: their fleas.

Never mind, New Yorkers should look back to the nineteenth century and its plagues of rats living in the horse manure piles and on the horse carcasses. They owe fossil fuels for cleaning up their city to the point where people can only complain about a very few rats.
Back then, the newspapers used to speculate how far above two stories the manure piles would reach that year.

Tasfay Martinov
Reply to  tty
November 5, 2018 10:30 am

The problem here is a severe infestation of Rattus democraticus in all US cities, worst of all on university campuses.

Ralph Knapp
November 4, 2018 12:32 pm

These cities are already infested by rats disguised as global warming experts. However, this species will soon be eliminated by facts and will be gone forever.

Reply to  Ralph Knapp
November 4, 2018 1:12 pm

No. As long as their food source remains (easy money for doing little to no work and no useful work) then they will just adapt to a new environment. They will be as versatile as rats (and also the common house cat).

Vision Wheels
Reply to  Wade
November 5, 2018 7:50 pm

They surely have a strong survival instinct and behavior. Lacking of a natural predator in the cities, these rats multiply easily.

John Robertson
November 4, 2018 12:33 pm

Is that a spelling error,Faye Flam,I keep seeing Flim Flam.
Bloomberg is full of Burning Stupid, so much so I simply flick past it when sampling news.
Of course on this amazing theory, San Fransisco confirms it,due to Global Warming their streets are full of human faeces and rats?

Tom Halla
November 4, 2018 12:33 pm

So climate change will make it as if one moved several hundred miles south. Really, really scary?

Gary Ashe
Reply to  Tom Halla
November 4, 2018 12:36 pm

Tom is 1c every 100 miles closer to equator.

Gary Ashe
Reply to  Gary Ashe
November 4, 2018 12:38 pm

Dang, is it 1c etc, i t was question, not a statement.

Reply to  Gary Ashe
November 4, 2018 1:17 pm

Daytona Beach is 1,000 miles from London, Ont, Canada..
As of right now…
Daytona Beach is 27c
London, Ont, Canada is 7c
(20c difference)…so…
1,000/20=50 miles per 1c ?
I think !!

Ralph Knapp
Reply to  Marcus
November 4, 2018 2:25 pm

It’s 2C up here in Barrie, ON. 🙂 London’s in the “banana ” belt.

Reply to  Marcus
November 5, 2018 7:51 am

That would explain their politicians.

Reply to  Gary Ashe
November 4, 2018 1:11 pm

It is about 1C every 333′ in elevation. Most species of life can flourish across many 1000’s of feet of elevation, so I really don’t see what the big deal about something even as large as the impossible, yet presumed, 3C increase caused by doubling CO2. The mystical 3C only represents 1000′ of vertical elevation which is significantly less than what I would typically ski in one lap of KT22. What I see as a big deal is that the 3C being claimed is wildly over stated and lacks any legitimate theoretical basis.

Reply to  Gary Ashe
November 4, 2018 2:59 pm

Or 500 feet vertically….

Reply to  tty
November 6, 2018 3:14 pm

And mountains are higher nearer the equator. Problem solved.

Reply to  Tom Halla
November 4, 2018 1:11 pm

Tom Halla wrote, “So climate change will make it as if one moved several hundred miles south. Really, really scary?”

Not even that much.

If you look at the growing zone charts you’ll see that at mid-latitudes 1°C is roughly equivalent to an isotherm / growing zone shift of just 50 to 90 miles, a distance which is utterly dwarfed by the range of growing zones for most crops:
comment image

For annual crops, away from the coasts, 1°C of warming can be fully compensated for by advancing planting dates by about seven to nine days:
comment image

In James Hansen’s famous 1988 paper (in which he predicted a 0.5°C per decade warming trend for his business-as-usual Scenario A), he wrote:

“A warming of 0.5°C per decade implies typically a poleward shift of isotherms by 50 to 75 km per decade.”

From the growing-zone charts, I think 50 to 75 km (31.1 to 46.6 mi) per 0.5°C is a bit high for mid-latitudes, but even if it were correct 2°C would be correspond to an isotherm shift of only 124.3 to 186.4 miles.

November 4, 2018 12:33 pm

The fact that these fringe theories get media attention tells you all you need to know about the MSM and their support of AGW.

John Minich
Reply to  markl
November 4, 2018 3:15 pm

I’m very tired of MSM (main stream media) editorializing lies as if they were reporting the truth, a big reason for me to come here. I’ve come to the point where I consider MSM (methylsulfanilmethane) to be more useful than, what might be called, marginally sentient media.(MSM).

November 4, 2018 12:34 pm

Due to the geomagnetic storm, the jet stream will press strongly in the north of Pacific.

Ron Long
November 4, 2018 12:36 pm

Yea, and besides the mafia knows how to deal with rats.

Pop Piasa
November 4, 2018 12:38 pm

A good example of the climatariat’s KISSASS approach.
Keeping It Simple And Sufficiently Scary. 🐀🧛‍♂️

Reply to  Pop Piasa
November 4, 2018 6:36 pm

I make my living in alpine skiing. I will have to remember that one.

Greg Cavanagh
Reply to  Pop Piasa
November 4, 2018 10:42 pm

Not enough S’s in the first S pair.
Perhaps:- Keep it Super Simple And Sufficiently Scary.

Bryan A
Reply to  Greg Cavanagh
November 5, 2018 12:17 pm

Keep It Simply Stupid And Sufficiently Scary

November 4, 2018 12:38 pm

Aren’t rats edible?

Ribs ‘n Crickets mmmm’m
(see 1960’s movie “King Rat”)

Hoefully solves the methane flatulence problem from beef!

Clyde Spencer
Reply to  JR
November 4, 2018 4:36 pm

Legend has it that the French Foreign Legion ate rats sauteed in white wine during the siege at Dien Ben Phu. I haven’t tried them, but they may taste a lot like whatever they have been eating.

Mickey Reno
Reply to  JR
November 4, 2018 5:38 pm

We should capture some of these non-native invader Burmese Pythons from the Everglades and release them in the Boston and New York sewers for rat control. But just don’t get too comfortable while you’re sitting on the throne, as both the escaping rats and the pursuing snakes might just come up between your legs while you’re doing your business.

Joe - non climate scientist
November 4, 2018 12:44 pm

Most cities are already overrun with rats – oops – I mean democrats

kent beuchert
November 4, 2018 12:50 pm

You would think that even a dimwit would know that the temps they fear already exist at lower latitudes.

Randle Dewees
November 4, 2018 12:53 pm

18 grains at 800 FPS

Pop Piasa
Reply to  Randle Dewees
November 4, 2018 1:42 pm

Snakes work silently 24/7, and stay mostly out of sight. They also don’t leave the carcasses lay around, like my barn cats. I save ammo for Muskrats in my pond dam and Possums in my hay barn. 🐍🐈

Pop Piasa
Reply to  Pop Piasa
November 4, 2018 6:04 pm

Helpful tip:
Please don’t kill snakes unless they are poisonous. No snake has ever transmitted disease to humans, even after consuming rats that do so. They are just as scared (or more) of you, so just back off and they will run and hide. I have seen a Massasauga Rattler do that in Missouri, although other Rattlesnake species and copperheads are less likely to flee and will strike in range.
A few Blacksnakes can keep a midwestern US home free of rodents if left alone.

Reply to  Pop Piasa
November 5, 2018 8:03 am

I tried and tried to explain that to my wife when she found a four-foot Black Snake in our flower garden one afternoon. She would have none of it. I ended up cajoling and/or forcing it into a large Tupperware storage tub, and transporting it over to the park next to the river, a win for everyone involved, I hope.

November 4, 2018 12:54 pm

It’s a well-known fact that if climate change benefits anything, it will only benefit things that are bad: rats, diseases, crop devastating insects.

Clyde Spencer
Reply to  Hivemind
November 4, 2018 4:30 pm

My thoughts exactly. If it is cute and cuddly like a pika, or penguin, (polar bear, not so cuddly), they will suffer. If it is something that humans hate, they will evolve into something like Godzilla. It is so obviously biased that it is ludicrous!

Pop Piasa
Reply to  Clyde Spencer
November 4, 2018 6:22 pm

You have successfully exposed a primary M.O. of the climatariat socialist movement. Too bad you don’t have clout in the press…

November 4, 2018 12:56 pm

Conservatives aren’t more afraid than lefists. They have a realistic view of risks, because their Amygdala works properly, whereas leftists’ doesn’t.

Besides which, they tend not to live in big cities, so they really don’t care if the left turn those cities into rat-infested hellholes.

Reply to  MarkG
November 4, 2018 8:59 pm

Half of these mainstream news articles about conservatives having xphobia, the other half about the dangers of global warming, nuclear plants, Russia and the flu (don’t forget your vaccine).

November 4, 2018 12:58 pm

The Houses of Parliament in Westminster, London, is infested with rats.

I dare-say the White House is much the same. Just identified more accurately by President Trump as swamp rats.

November 4, 2018 1:15 pm

Fortunately, because of Bergmann’s rule, a warmer climate means smaller rats.

November 4, 2018 1:26 pm

US cities are already overrun with rats………..Democ-rats!

November 4, 2018 1:33 pm

Funny, I thought most large cities were already majority Democrat.

November 4, 2018 1:41 pm

It’s getting a little hard to keep track. 🙂 In 12 years the Earth is destroyed, and in the mean time 60% (or is it 97%?) of the species will be killed off, except for the rats? I think these people aren’t even trying to be scientific, rather it’s a game of “my predictions are much worse, so look at me me me!”

Larry Vaughn
November 4, 2018 1:42 pm

I would venture a guess that Flam is not a Wildlife Biologist or any kind of Biologist. As a Biologist I can say that Flam does not know anything about Biology.

Reply to  Larry Vaughn
November 4, 2018 3:05 pm

No, she is some sort of journalist at Science and apparently not a scientist at all.

Clyde Spencer
Reply to  Larry Vaughn
November 4, 2018 4:42 pm

Flam apparently has a B.Sc. in geophysics. Although, perhaps her main claim to fame is being an expert about sex. She has written a book on the role of sex in human evolution. I don’t remember any such topics being covered in my undergraduate geophysics courses! I’m sure I would have remembered!

November 4, 2018 1:46 pm

All predicted by Hollywood nearly 50yrs ago.

November 4, 2018 1:48 pm

Judging from the image proferred at the start of the post, all rat lovers must be distressed by the appalling effects of global warming on the poor creatures. Something must be done – money to WWF please.

November 4, 2018 1:58 pm

My dog is a rat cranium crunching little biatch. This will make her very happy.

Reply to  Craig
November 4, 2018 5:01 pm


My dog is the sweetest mutt you could ever meet, a Staffordshire Bull Terrier, Jack Russell cross.

Seriously, she is the gentlest dog you could imagine, until she suspects a rats around. Then she visits the local phone box and transforms into Monster Mutt, with agility of a Jack and the jaws of a Staffie.

I’ve worked on farms that used Jack Russell’s to hunt rats, none of them come close to my Monster Mutt! Hand on my heart, she ripped up a substantial tree root one day in pursuit of a rat.

John Tillman
Reply to  HotScot
November 4, 2018 7:48 pm

That’s an awesome cross, having known both breeds well and admired their mental and physical abilities.

Reply to  HotScot
November 5, 2018 9:19 am

That is AWESOME!!

And totally believable, knowing even what little I do about those breeds. But then, that is why they exist, nu?

Totally off, but do you have a pic?

John Bell
November 4, 2018 2:02 pm

Over run by DemonRats, i mean Democrats.

November 4, 2018 2:02 pm

“By Faye Flam 31 October 2018, 01:02 GMT+10
What’s so scary about climate change?

How about “rat explosion”?

As the climate warms, rats in New York, Philadelphia and Boston are breeding faster — and experts warn of a population explosion.”

How, exactly, does that work Ms. Flim Flam!?

1) The gestation cycles is shorter?
2) Mother rat grows a few extra nipples?
3) Father and Mother rat eat less of their young?

Nope, just another delusional activist making things up by taking one from column A and another from Column B, then blaming climate change.

May her residence be invested and infested by rats, forever. Along with multitudes of their smaller kin.

Reply to  ATheoK
November 4, 2018 3:16 pm

Rats are as successful as they are because they are adaptable to all circumstances and are mainly limited by food supply. I can’t believe the temperature is a significant influence.

Reply to  Susan
November 4, 2018 4:13 pm

There is not much rats will not eat, including rats cannibalizing other rats.
This willingness to eat almost anything, makes it hard to “limit” a rats food supply.

The limiting factors on rats are disease and predators.

Whether ‘rattus rattus’ or ‘rattus norvegicus’:
* Rat litters are usually 7-14 rats per litter; average is 7 or 8 per litter.
* Rats reach sexual maturity at 50-60 days old.
* Pregnancy last 21 days.
* Eyes open in 14-17 days.
* Breeding period is 22 days, weaned by 3 or 4 weeks old.
* Postpartum fertilisation is likely; which starts the next litter for birthing as the current litter weans.

It is claimed that rats reproduction slows during fall and winter, but I doubt that claim.
Fall marks the harvest season, which provides a great deal of nourishment.
Fall also marks when Hawks migrate South and reptiles hibernate, greatly reducing local predator numbers.

When rats reach sufficient population density, it is nearly impossible for a person or several persons to set enough traps every day.
Especially since any rats killed in a trap are immediately high protein food for the rest.

It’s why farmers appreciate cats that hunt rats and why many farmers will not kill snakes.

Even after last night’s frost, my dog surprised a black snake trying to catch enough sunlight to warm up. I held the dog to allow the snake to reach the rocks.

Here in Virginia, ‘black snake’ is the local name for common rat snakes. Every one of them is welcome around my home. Inside or outside, I’ll catch them and move them to where they and I will be happier; usually in the garden, orchard or my berry bushes. Unless, someone really irritates a rat snake, they rarely strike and are relatively easy to pick up.

I even catch the local poisonous copperheads and release them deep in the woods. Those I prefer away from where I am barefoot.

I have zero love for rats, while I do love a lot of their predators.

November 4, 2018 2:14 pm

New York is already over run by rats.
Some of them the 4 legged kind.

Reply to  john
November 4, 2018 2:45 pm
November 4, 2018 2:39 pm

With such an assertion, one might think that rat populations in various US cities might have something to do with their respective weather. Look at and you will find that among the 50 “rattiest” cities, there is no readily apparent correlation. The top 4 cities include two in cold climates (New York and Chicago) and two in warm climates (San Francisco and Los Angeles). The remaining 46 are a hodgepodge of warm and cold.

I am certain only that the “researcher “was well paid to come up with his findings.

Reply to  DHR
November 4, 2018 3:13 pm

She is apparently a journalist not a researcher. In other words a professional liar.

November 4, 2018 2:43 pm

but I thought the people would have to migrate out?

November 4, 2018 3:01 pm

Misunderstood ?

Reply to  u.k.(us)
November 4, 2018 3:53 pm

I’m going to go out on limb here and assume she doesn’t get to many men to stick around after the first night !

Bruce Cobb
November 4, 2018 3:16 pm

Rats? Meh. They aren’t even trying. How about giant spiders? Or even Itsy Bitsy ones?

Richard of NZ
Reply to  Bruce Cobb
November 5, 2018 11:59 am

Why whenever I hear Itsy bitsy do I think

It was an itsy bitsy teeny weeny yellow polka dot bikini
That she wore for the first time that day

November 4, 2018 3:17 pm

We’re going to have to tear down those wind turbines so the predator birds don’t get killed off and can consume the exploding rats. How hot do you have to get a rat before it explodes? I’m thinking over 200 degrees F.

November 4, 2018 3:23 pm

Rats are not very climate sensitive, living almost everywhere on Earth — once introduced to an area, all they need is food and shelter. Outdoor weather then is not a factor.

“Once established in a community, rodents can be tricky to get rid of, in part because it requires a concerted effort to cut off their supply of food and shelter.”

Eliminate access to food sources, and they rapid vanish (well, move on to someplace different where there is food). Unfortunately, modern suburbanites inadvertently feed the rats by “being kind” to feral (or neighborhood) cats and dogs — food bowls placed outside for all to enjoy and by feeding birds through the winter (suet and bird seed are rat food).

Hint: Feed your pets indoors where they belong. Do NOT leave food bowls out with food in them — when you pet is finished with its meal, pick up and put away the bowl and any leftover food. Store pet foods in metal containers with air-tight lids.

Keep your kitchens clean with no food (even in the trash) left out at night. Cupboards containing food not in cans need to shut tight. Even fruit bowls can attract rats and mice — hanging fruit from the ceiling in a decorative basket eliminates this problem and creates more open table space.

If you have a serious problem, call in an expert.

Reply to  Kip Hansen
November 4, 2018 3:33 pm

PS: If you have rats, get an expert to trap one and identify it. In rural or suburban areas with woodlots, you may have wood rats — which naturally live in the forests and swamps of the Eastern US and are pleased to move in with you during the winter.

The Wood Rat is not the same as the Norway or Black Rat of the Big Cities.

In NY State (rural) we have the Allegheny Woodrat. It takes some careful planning and action to keep them from moving in every winter, but if we have kept them out by Christmas, they will have found somewhere else to live for the duration. (They always move out in the Spring — as the prefer to wild foods then available over our human food).

Clyde Spencer
Reply to  Kip Hansen
November 4, 2018 4:49 pm

You remarked about the rats found in “swamps of the Eastern US.” I presume that the type locality is Washington, DC. 🙂

Reply to  Kip Hansen
November 5, 2018 5:41 am

We lived near a wooded area and there was one thing that kept the rats out of the garage during the winter. When we had cats, the rats stayed away. The years we didn’t have cats, there were rats and I had to set traps.

Reply to  SocietalNorm
November 5, 2018 11:59 am

20 years in my house (with at least one cat) & 1 acre property … no rats (lots of tiny headless mice … the oldest cat had a preference for only the heads … the rest he would leave on the front mat as proof he was doing his job).

The last cat went outside to die early this spring and the rats rolled in. Big suckers. Peanut butter and an industrial size trap in the garage. I thought the trap was maybe too big … it tripped four times without catching anything, and the peanut butter was gone.

Then I heard it out in the garage when I was home. Big 10″ rat (not counting tail) … trapped across the shoulder … bleeding out the side of the head … struggling ….

It was cruel, but I decided to just let it die before messing with it. Went back in the house (from the garage). After about 5 minutes heard some more noise/struggling. Went back into the garage to put it out of it’s misery. It was gone. It got a second wind and pried itself out or the trap. Big rat.

I was kinda wondering if the industrial poison boxes had big enough holes.

Which is less hassle … adding fencing so the dogs can go anywhere, or getting another cat?

Reply to  Kip Hansen
November 4, 2018 6:44 pm

Hi Kip,
Your advice is sound for urbanites and suburbanites, but the ‘Black’ Rat (they are brown here and probably better called Roof Rats to distinguish them from that Sewer Rat Rattus norvegicus) is feral here in the Sunshine Coast Hinterlands of Queensland. It does fine without pet food (although one reason I don’t keep chooks is the feed and scratch attracts rats which then attract Brown Snakes). Except for fallen fruit I keep my hectare clean of feral food sources, but I still have periodic invasions by Rattus rattus (Sewer Rats seem to stick pretty much to cities in Australia). They would establish if I let them, but I keep a block of Rat Sack out and when I see nibbles I set traps (trapping is not as cruel as letting them slowly bleed to death, but I bait the traps with Rat Sack just in case – they are very clever animals). Clever and also interesting animals, very adept at climbing (they like nesting in palms), and if they didn’t have such a negative effect on wildlife (eating nestling birds for example) and a tendency to invade my home, I’d probably try to coexist.

Reply to  DaveW
November 5, 2018 7:59 am

DaveW ==> On the top ten list of destructive invasive species are domestic dog, domestic cat, the rats (Norway and black), pigs and goats. The last two easily go feral and destroy whole ecosystems.

Feral domestic animals, all of them — cats, dogs, goats, pigs — should be rounded up and euthanized or hunted out.

Reply to  Kip Hansen
November 6, 2018 3:35 pm

My understanding is that virtually all feral pigs in the new world descended from a small herd(?) that escaped the Spaniards near Tampa, Florida in the 16th century. Good luck wiping them out.

Reply to  Kip Hansen
November 5, 2018 12:50 am

Well, when global warming really takes hold we will all be starving and won’t be leaving waste food for rats! And we will be glad of any extra protein source. (Sarc)

November 4, 2018 3:28 pm

Well, if nobody else is going to say it, I will:


Coeur de Lion
November 4, 2018 3:42 pm

Aargh. Yersina pestis. We’re all gonna die

Samuel C Cogar
November 4, 2018 3:44 pm

Excerpted from the Faye Flim Flam quote:

As the climate warms, rats in New York, Philadelphia and Boston are breeding faster —

Many living things are sensitive to small changes in temperature, so warming of 2 degrees Celsius will transform the flora and fauna that surround us in a big way.

Do ya pose someone ought to tell Flim Flam Faye that there is a noticeable deficiency of “flora and fauna” in the above cited cities and that a Springtime temperature increase of 30 to 50 degrees will cause a big transformation in the flora, and besides, the resident rat population therein don‘t give a “squeak” about daytime surface temperatures because they mostly live and breed “underground” where the temperature never changes.

Joel O’Bryan
November 4, 2018 3:48 pm

Liberal infestations are like rat plagues.
The vermin infestation are Liberals who destroy one nice city after another with their progressive politics. Like a plague of locusts, they began to descend on well run Conservative Red cities like Bend Oregon and Austin Texas. What brought them there were well run municipalities, low crime, affordable living. But they brought their politics with them and destroyed the very things that attracted them.

John Tillman
Reply to  Joel O’Bryan
November 4, 2018 7:43 pm

Right you are. They flee the Hells on earth which they’ve made only to inflict Hell on Heavenly realms. They just don’t get it.

Samuel C Cogar
Reply to  Joel O’Bryan
November 5, 2018 5:03 am

The vermin infestation are Liberals who destroy one nice city after another with their progressive politics. Like a plague of locusts, they began to descend on …….

Yup, just like the vermin infested plague of illegal immigrant criminals that have been sneaking across the USA’s southern border for decades ….. with the blessing and approval of the socialist thinking “bleeding heart” liberals, …… and the thousands of immigrant INVADERS that are currently marching toward the USA’s southern border, ….. proudly waving the Flags of their home country at the head of their invading plague.

Just like all the other human “invasions” throughout history, ….. the appointed “flagbearers” of the invading horde were always upfront leading the “wannabe” conquers and/or destroyers.

November 4, 2018 4:37 pm

Happy days for cats ! Really the only rats are disguised as climate con-men .
Fuel poverty deaths caused by these con artists should be prosecuted .
Politicians and lobbyist’s pay for fake science to justify policies to tax and kill people .
Trump is right again . It’s simple … a globalist agenda or a nationalist agenda .
He picked a nationalist agenda rather than cave into ultra left wing globalists
who are really self dealers .
Vote Tuesday . Save your country USA . The Democrats are serving their hedge fund owners .

November 4, 2018 5:04 pm

There have always been lots of rats in the big cities so just release lots of alligators in the sewers and drain pipes. Alligators gotta eat too and they will already be established when global warming gets here!

November 4, 2018 5:30 pm

Whilst walking home after taking a girl friend home.
Late at night after the buses stopped running.
I was privilege to see several hundred rats moving
As if like a river across the road in front of me.
To say I was impressed is to make little of the experience.
This was only 60 odd years ago.
Since then I have only seen them. Singly.
Then only when I was searching for them with a 410.

michael Ozanne
November 4, 2018 6:17 pm

Oh F**K me backwards….. Rattus Norvegicus has flourished wherever mariners have deposited it from Svalbard to Tahiti provided it can find food and a place to nest…. Control of rats requires shutting off the food sources.. sufficiently sealed bins and regular garbage collections…. Don’t do that and they’ll eat the cockroaches to survive the nuclear armageddon….

michael hart
November 4, 2018 6:27 pm

Hey, at least the advertiser’s algorithm finally got something nearly right: this WUWT article was accompanied by ads for London Pest Control. In reality this is just an indication of how bad computer AI normally is. (I did recently clean the mousetraps in the garage, but I don’t think any member of the household has an Alexa-type listening device that could give succor to theories claiming that adverts are targeted, based on what our cell-phone microphones can pick up.)

November 4, 2018 6:31 pm

I’m tipping San Francisco will lead the rat plague race , with or without temperature rise. You know, just because it sort of fits. Look for to rat wranglers, rat welfare officers, rat rights protest, rat research grants and possible an LGBTIQetc Pied Piper.

November 4, 2018 7:06 pm

Apparently some residents say Rome is becoming unlivable.

“Romans to hold mass sit-in to protest at the sorry state of the Eternal City
Fed up with seeing wild boars trotting down busy streets, giant seagulls dismembering dead rats and perilous potholes in the roads, Romans are to stage a mass protest against the parlous state of the Eternal City. ”

It has nothing to do with climate change, just poor maintenance.

November 4, 2018 7:08 pm

My favorite account of rattus populations in NYC is Joseph Mitchell’s in Up in the Old Hotel. Incredible.

November 4, 2018 7:49 pm

I don’t know about rats, but we’re being overrun by rabbits where I live. I had to put a fence around my zinnia garden to protect them. Wish I could borrow someone’s cat.

Reply to  littlepeaks
November 5, 2018 4:58 am

Or a kid with an air-rifle. Win/Win.

November 4, 2018 9:59 pm

They should maybe look at the facts, the poisoning has been so effective that rats with a genetic mutation are thriving.

The Genetic Basis of Resistance to Anticoagulants in Rodents

Rats will follow human populations, they only get out of control when public local authorities neglect controlling their populations due to budget allocation.

John Tillman
Reply to  Johnboy
November 4, 2018 11:30 pm

Evolution makes it hard to control species with short generation times and lots of offspring, whether microbes, like MRSA, or multicellular organisms, like rats.

Alan Tomalty
November 4, 2018 10:08 pm

The NASA website has a graph that puts 5 different temperature datasets on a single graph from 1880 to 2017 or so (hard to tell what latest year is) . Of course all these datasets are fake because they have suppressed the warming of the 1930s. 3 other things stand out. 1) The data sets are almost exact matches of each other 2) One of the datasets is GISTEMP which includes water temperature data along with land air temperatures. 3) Another one of the datasets is called Cowtan and Way.

So I go to their website to find out what the heck is that dataset? Lo and behold I find this caveat on their website. I quote: “Maintaining a scientific data set to professional levels of quality assurance is beyond our resources. These results are therefore presented as a best effort. ”


To think that billions of dollars are being spent on this fraud and because of this fraud boggles the mind.

Craig from Oz
November 4, 2018 10:08 pm

Problem with rats and mice in many parts of the world is their place in the food chain.

Snakes eat them.

In many places I have worked they bait actively and aggressively as well as maintaining a good rubbish policy in order to keep rodents in check, otherwise snakes come in looking for them.

Greg Strebel
November 4, 2018 10:46 pm

And of course, we already have one of those two predicted 2C degrees under our belts already. Anyone notice an increase in rats so far?

Alan Tomalty
Reply to  Greg Strebel
November 5, 2018 12:26 am

A large increase in climate science rats who live off the public dole has been detected in recent years.

November 5, 2018 12:44 am

Alberta has had a rat patrol since 1950, and has largely been rat free since then, but I don’t know about whether the NDP socialist gov’t has kept this program up and running. Probably not since they have a lot in common with rats.

Johann Wundersamer
November 5, 2018 3:03 am
November 5, 2018 3:52 am

2c will lead to a plague of rats
Which will lead to a rise in pied pipers
Leading to a decline in the numbers of children
Having children is a crime against the planet
Temperatures will fall, meaning less rats

Journalists these days..just dont think things through

November 5, 2018 4:33 am

‘Surely we can unite against a future filled with rats.’

We are uniting against a present filled with Climate Change rats.

November 5, 2018 4:55 am

Well, I know of a sure fire way to cause rats to go extinct.

Declare a global emergency that the rat population is declining, open up whole new departments within academia, entertainment and government at all levels with instructions to go into full panic. Find expert propagandists to wear lab coats, prepare upside hockey-stick charts, write journal articles and lobby for vast sums of money to be wildly poured into furthering even more research and regulative discovery.

Threaten children, women, minorities and other presumed weak minded people with disasters and unspeakable horrors at a personal level if the rat population declined by even one rat. Declare that the extinction of the rat species will be an Existential Threat to the survival of the Planet, maybe even the Solar System unless we ACT NOW.

Within years, there would not be a single rat on planet earth.

November 5, 2018 5:20 am

I as given a tip by a farmer I knew.
He said that the best way to rid your self of rats,
was to catch a few. Said a dozen was a enough,
Put them all in a closed steel cage (wood the chew their way out).
Leave them for a while, He was not specific how long.
Just till there was only one rat left.
Then let the last rat go.
He did say it would not get rid of all the rats.
As getting a dozen rats to put in the cage again became difficult.

November 5, 2018 6:31 am

Add rat control to the list of NY budget needs with subway overhaul from Super Storm Sandy V2 and the political push to get the Feds to pay for it.

Joel Snider
November 5, 2018 10:18 am

Well, Portland Oregon certainly has rats running in the streets that weren’t there twenty years ago – pretty much due to their refusal to use anything to kill them that might upset a blade of grass – but that’s what progressive eco-policies will get you – more filth, vermin, etc.

Then of course, there’s the human rats.

Wiliam Haas
November 5, 2018 2:03 pm

The cats in our neighborhood would love to see that happen as would other animals and birds who feed on them.

November 6, 2018 6:50 am

Gotta love how the left leverages climate change when their laws, etc. go bad.
A number of Rodenticides have been banned. So the end result is naturally going to be more rodents.

In a nutshell, this is what is occurring:

1) Number of effective rodentcides banned.
2) Rodent population then increases.
3) People notice
4) “News’ organizations report the rodent population increase is from climate change.
5) Snowflakes then blame evil white male deniers for bad weather that is causing rodent population problem.

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