Climate craziness of the week: Yes, we have no bananas, thanks to climate change

A bunch of Bananas.

A bunch of Bananas. (Photo credit: Wikipedia)

[At least there will be less radiation spread around. -Anthony]

Going Bananas: Another Climate Change Hustle

Guest essay by Paul C. “Chip” Knappenberger and Patrick J. Michaels

We hear that there is looming banana crisis in Costa Rica—the world’s 2nd leading exporter of the fruit—as this year’s crop is being threatened by an infestation of mealybugs, scale insects, and fungal infection.

Petulance, plagues, disease? It must be climate change, of course!

The Director of the Costa Rican Agriculture and Livestock Ministry’s State Phytosanitary Services, Magda González, told the San José Tico Times, “Climate change, by affecting temperature, favors the conditions under which [the insects] reproduce.” González estimated that the rising temperature and concomitant changes in precipitation patterns could shorten the reproduction cycle of the insect pests by a third. “I can tell you with near certainty that climate change is behind these pests.”

This is bananas. 

But there’s a method to Gonzalez’ madness.  In it’s recent Warsaw confab on climate change, the UN has made it abundantly clear that one of its endgames is compelling “reparations” for climate damages cost by dreaded emissions of carbon dioxide.  The more that poorer nations make these claims—however fatuously—the more momentum builds to extract capital from me and thee.

May we humbly suggest that calling Ms. Gonzalez’ claim “fatuous” is really being too nice.  She should actually propose compensating the United States for all the excess bananas that are associated with warmer temperatures.

Figure 1 shows banana production in Costa Rica from 1961-2011. Figure 2 shows the temperatures there over the same period. We hate to burst anyone’s climate-change-is bad-bubble, but the correlation between these two variables is positive. That is, higher temperatures are associated with greater banana production (and yield).

Figure 1. Annual production (tonnes) and yield (Hg/Ha) of bananas in Costa Rica (data from FAOSTAT)

Figure 2. Annual temperature anomalies in Costa Rica, 1961-2011 (data from Berkeley Earth).

And as far as precipitation goes, the trends down there are all over the place—some stations show trends towards increasing rainfall amounts, while others nearby, towards decreasing amounts.  The geography of the country, along with all sorts of external influences including tropical cyclone activity, sea surface temperature patterns, and larger-scale circulation systems in both the Pacific and Atlantic makes for a very complex pattern precipitation variability, both temporally and spatially, across Costa Rica.  It is virtually impossible to assess the influence of recent human-caused climate change in such a complicated and highly variable natural system.

So you have a situation where annual precipitation variability is high and where warmer conditions seem to be associated with greater banana yields.

While it is probably not out completely out of the question that some sort of weather influence may, in part, play some role in the current affliction of the Costa Rica banana crop, to implicate human-caused global warming, you’d have to have gone completely…, well, you know.

But climate policy has always functioned best in a data-free environment, about the only way a cheap hustle like that of the Costa Rican National Phytosanitariest merits any attention at all.


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Way to go!
Some years ago, I had some problems on my banana plantation with banana stem borers and a storm.
I think at least tens of thousands of people might have died from this, so where do I get money to compensate for the losses.


Neat , add that to our insurance bill when the UN green fund gets set up.
Anyone can now claim “climate change” had affected their crop yields and we become legally responsible for their “losses”.


“I get money to compensate for the losses.”
You have not been paying attention to the Warsaw conference.


I think you meant “pestilence,” though “petulance” is funnier.

Is that a banana in Costa Rica’s pocket, or are they just excited about “Climate Change”???

Dave Walker

The pests Sra. Gonzales refers to affect the appearance of the fruit, impairing marketability. Taste and nutrition are fine. Monocropping bananas takes about 40 pounds of chemicals per acre per year and implies a continuous struggle with rapidly evolving pests and diseases. I doubt a few tenths of a degree difference in average temperature has a measurable effect on these critters. If so, move your crop uphill a bit.

Dave Bowman

Flatulence is funny still.
(Stop looking at me like that, HAL, and no, I’m not going out to fix the AE35 unit again.)


$.39 a pound on sale nearby. It is December which is the high cost season, better deals can be had in the summer.
We had a similar climate change killing the lobster yield in Maine earlier this year. Of course it mentioned the 2012 catch was a record and the 2013 was tracking ahead of 2012. You can buy lobster if you shop for price under $4 a pound which is well below the 1975 price in nominal dollars. If you chained weighted it to inflation it would represent 85%+ DEFLATION of lobster that climate change is “driving to extinction” I think the term was used. There is a fantastic cyclical lobster explosion on the Maine cost due largely to a low Cod stock that is another whole meme in itself. Point is lobster and bananas are not in any shortage by any historic measures. It’s just making stuff up as a starting point.
Logic has no place in these climate meme stories. They often contradict the facts placed in evidence by the advocates as with the disappearing Maine lobster article that pointed out the record yields and fisherman complaining of low wholesale prices. The banana extinction story is cut from the same cloth.
What we are really talking about is basic editorial decline of even the most basic facts of a published article. As long as the article is supporting the political meme of AGW then any other matter, such as mere facts, are very secondary. Orwellian media is one thing but we have developed an Orwellian audience that thinks this is all very normal. None of these writers are going to lose work or position being just flat out wrong on statements of fact. This is the world we live in.

We’ve passed peak bananas.

What IQ level again do you have to be, to be a quackitist/alarmist ? Or one of the cult of warm’s members ? Between that of a banana and a fungus infection perhaps ? Trofim Lysenko had nothing on these clowns. Neither did Pravda.

I went for a swim with my daughter, and was diagnosed the next day with appendicitis. Must have been climate change.

Once you take that “Leap of faith and let AGW enter yo heart my brothers ‘n sisters”, any level of idiocy is possible…


Pestilence, penitance, petulance….nice crises words all. In comes the big bucks, or do they? The billions were promised in Cancun, in Doha, and Warsaw. The drowning poor nations walk out, and back in. Still the billions are not transferred Will this miracle happen in Lima next year, or perhaps the great showering of funds is being saved for the grand finale in Paris 2015?
At least, if disappointment is all they get, they will have the satisfaction of being snubbed by the magnificent spectacle of French State Pomposity. Who better to put these wannabes in place than a French President, the combined incarnation of Louis 14th and de Gaulle?
And we are all doomed anyway, as a comment in the Independent says:
“There is no adaptation to climate change, only mass starvation and mass death + a sense of thirst that with make one feel a sore throat as one croaks.”
That’s faith!


González is taking the pisang (Malay for banana)

michael hart

I can see “the pause” in the banana-curve from here…

jim hogg

This, lifted straight out of the above piece: “of recent human-caused climate change” isn’t a cherry picked phrase out of context . . . construed within the whole sentence it appears in, it clearly implies that the author accepts that some recent climate change (a permanently ongoing process I would have thought) is due to human action . . . As it’s quite possible that climate variation influences disease/insect populations/behaviour (potato blight?), he’s therefore giving his opponents a very sizeable stick to beat him with!. .


Now that is what I can term a peel to the lunatic fringe.


Just a big Blame Game and trying to get $$$ for free.


“Most bananas exported to Europe are grown on large-scale plantations in Latin America, and increasingly, in Africa. Banana plantations are monocultures – where only one type of crop is grown. 97% of internationally traded bananas come from one single variety, the Cavendish. This lack of genetic variety makes plants highly susceptible to pests, fungi and diseases and therefore large quantities of insecticides and other pesticides are applied to the crops.”
Looks like this is the perfect “fruit” for all environmentalists to hate. Huge inputs of chemicals, destruction of tropical forests and of course they are radioactive!


This is nothing new, The Cavendish variety; named after the Duke of Devonshire, family name Cavendish, who had some growing at Chatsworth his country home in Derbyshire (don’t ask why the Duke of Devonshire has estates in Derbyshire). When the previous single variety crop Gros Michel was struck by Panama Disease the Cavendish which was immune took over.
Isn’t pest infestation what you’d expect by almost exclusively growing Cavendish, and like almost all bananas lacking genetic diversity, which makes it vulnerable to diseases.

Dan Hawkins

Costa Rica could benefit from a Department of Psychosanitation

michael hart

“…97% of internationally traded bananas come from one single variety, the Cavendish.

So that’ll be a “consensus” of bananas then?

Physics Major

If the commissars of the old USSR had Climate Change to blame for all of their crop failures, they might still be in power.

D.J. Hawkins

Production has tracked temperature, but yield seems to have peaked in about 1989. My guess would be that in order to drive up output in the absence of dramatic increase in yield that more land was brought into production. I further speculate that this additional land would be less suitable for growing bananas otherwise it would already be in use, thus driving down the global per acre (or hectare) yield. Nothing jumps out as being in anyway supportive of the theory that “climate change”, whatever that means in this context, is the root of their agricultural woes.


Don’t worry about bugs, the Panama blight is coming back. It was around half a century ago (well before any AGW) and nearly did in all the plantations. One variety, the Cavendish, was not affected so that is the one all the plantations switched over to. Now it is susceptible so we won’t have to worry about bananas much longer.
Of course they might just blame that on us as well and demand payment. Sigh.

Banana photosynthesis is by the C3 pathway, which is relatively sensitive to the CO2 fertilization effect. Another graph, with positive correlation, would plot banana productivity per acre against CO2 concentration.


If they want it 0.4 degC cooler and back to the 70s temperature, they’ll soon have it.

Jim Clarke

cwon14 says:
December 18, 2013 at 9:24 am
“Orwellian media is one thing but we have developed an Orwellian audience that thinks this is all very normal. None of these writers are going to lose work or position being just flat out wrong on statements of fact. This is the world we live in.”
Benjamin Franklin says:
Eighteenth Century at 9:25 am
“Believe none of what you hear and only half of what you see”
Abraham Lincoln says:
Nineteenth Century at 9:23 am
“You can fool some of the people all of the time and all of the people some of the time, but you can’t fool all of the people all of the time.”
Firesign Theater says:
June 18th, 1974 at 9:25 am
“Everything you know is wrong!”
If all of these people are expressing the same basic thought over 250 years (almost to the minute), than it is likely it has always been this way. The quest for truth is a constant battle. You can believe me on that!


Interesting that lobster has only relatively become a “high class” food. Previously, it was eaten by the lower classes, to the extent that servants would demand that it only be served a certain number of times.
As for bananas, as the UN is the EU on steroids, no doubt there will soon be a full and fearsome bureaucracy related to how straight one’s banana should officially be…

Janice Moore

Yes, We Have No Banana’s — Pied Pipers

Didn’t have ’em in 1948, either, apparently…

Janice Moore

I have NO IDEA why I put a after the a in bananas — didn’t eat enough bananas, I guess.


Not only bananas but we will have nothing to eat if things of environment sector keeps going in same fashion. We must wake up from deep sombre otherwise our coming generations will be cursing us on our lethargy to control pollution and save this world from climate change.

The increasing self restriction on the usage of agricultural chemicals has and is leading to uncontrollable damage. Maybe this is yet another example.

Stephen Richards

Can I have some money. I’ve had an infestation of scaly bugs this year on my lemon tree which sits on my terrasse all summer. I’ve tried evrything to get rid of them and they are still there. It must be climate change. I want some money from the rich countries, like china, for france in anything but rich.

Stephen Richards

The EU commies have announced the fight against air pollution. It kills millions of europeans every year so we have to stop driving in cities, bikes only from now on. A tax will be introduced on beans, cabbage and all methane generating plants.


“higher temperatures are associated with greater banana production (and yield).”
That explains the poor annual production rate of the Wyoming banana industry.

Alan Bates

NEW Costa Rican national song:
Or, from the same page, the climate scientist with no clothes?


‘“I can tell you with near certainty that climate change is behind these pests.” – Magda Gonzales
…………from the mouths of babes………………..

Svend Ferdinandsen

Just ask NOAA/GISS to readjust the temperature back to where it was once, then there will be no liability. Can not be so hard to invent a new procedure that makes that, even if it takes some time to find the arguments for the changes.

So, what does this do to radiation exposure from incidental banana contact?

Bruce Cobb

talldave2 says:
December 18, 2013 at 9:11 am
I think you meant “pestilence,” though “petulance” is funnier.
No, no, I’m pretty sure he meant pustulence, which is a combination of pestilence and pustulation.

So where is the evidence of all this claimed petulance and scale? And why should we think that two tenths of a degree spells disaster? Oh yeah, we’re stupid, that’s right!

Berényi Péter

It is a well known fact banana favors cool climate. This is why Canada, Norway &. Russia are the largest producers. Oh, wait…

Bruce Cobb

Everything is “threatened by climate change”, even the lowly haggis.

Just an engineer

mubami says:
December 18, 2013 at 11:01 am
I think you forgot to include /sarc after your message.

Tom J

I wonder if, perhaps, there are different dangers at work here and it may be the EU and not climate change that’s threatening the Costa Rican banana crop. I read recently that according to the EU a cucumber is not a cucumber unless, per its measured length in millimeters, it has no greater deviancy (sorry, but I couldn’t resist using that description for cucumbers – and, ultimately, bananas) than just a few paltry millimeters in curvature from being ruler straight. A shorter cucumber, however, is granted greater leniency, in relationship to its permitted curve. (Perhaps this is because, the shorter the length, the less size matters.) Now, since I don’t grow cucumbers I’m not privy to the actual dimensions, but I’m really not making any of this up; it’s right there in the EU regulations. And the same kind of tremendously important style of standards are actually ordained by the EU regulators in Brussels to apply to bananas: the general attractiveness of the appearance of a banana. Seriously, I wonder if that’s the reason for any loss in the Costa Rican crop. They just simply aren’t good enough looking to have an affair with.


Tom J,
Maybe if the cucumbers have too great a curvature, they are classified as bananas ?


Come Mr. Climate Man Talley Banana —- I kept looking for the obvious retort and it never materialized — must be Gorbal Warming


Tom J says:
December 18, 2013 at 1:50 pm
“And the same kind of tremendously important style of standards are actually ordained by the EU regulators in Brussels to apply to bananas: the general attractiveness of the appearance of a banana.”
These are only criteria that need to be fulfilled so that you can call your banana a “class A” banana. You can sell all the crooked fruits you want; you just might not achieve the class A price.
When I criticize the EU for something my socialist German colleagues usually come up with calling me a nutter because those fruit regulations are not that bad aren’t they. It takes me endless patience to make it clear to them that fruit classification systems are the least of my concerns.
The synchronized EU media does a great job bringing up these strawmen as if they meant anything; a well coordinated maneuvre to make criticism of the EU seem petty. Interestingly they never talk about the real issues.

Tim Clark

Sell your shares in this company before the world cools!!!!
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