Guest Essay by Kip Hansen
In its continuing advocacy of calamitous climate change stories, the New York Times runs a piece titled: “Syrup Is as Canadian as a Maple Leaf. That Could Change With the Climate” authored by Kendra “Gloom is My Beat” Pierre-Louis.**
She claims “In fact, climate change is already making things more volatile for syrup producers. In 2012, maple production fell by 54 percent in Ontario and by 12.5 percent in Canada over all, according to data from the Canadian government, because of an unusually warm spring.”
Golly, “fell by 54%”. That’s got to be serious — oh, wait a minute, that was in 2012 — in Ontario. Oh, and Ontario only produces a small percentage, less than 5%, of Canada’s overall annual syrup output and less than 1% of Canada’s export syrup.
The Times claims “Warm weather can hurt syrup production because the process depends on specific temperature conditions: daytime highs above freezing with nighttime lows below freezing. This specific variation — which tends to happen as winter turns to spring…”. That is almost true but syrup production does not depend on cold or warm spring weather, thus ‘warm weather’ is not a factor. It is the difference between sub-zero (°C) nighttime temperatures combined with warm days that produce the best maple tapping time. The hint is given to us when we see that Ms. Pierre-Louis has been forced to cherry-pick both the year 2012 and the Canadian province (Ontario) to use as examples.
Let’s look at the real data offered by the Canadian Government:

This chart spans the year 2012 and is very informative showing us how the Times article has spoofed the data to make it look as if Canadian Maple Syrup production will be or has been harmed by climate change.
First, let’s look closely at Ontario as a syrup producer: In 2012, Ontario produced only 3.2% of Canada’s maple syrup and in 2013 (an up year) it was 4.4%.
Agriculture and Agri-food Canada makes these statements about the year 2012: “In 2011, there were more than 10,000 maple farms in Canada, with over 44 million taps, for an average of approximately 4,000 taps per farm. The vast majority of these farms are located in Quebec, which accounted for 92% of the country’s total maple production in 2012. New Brunswick and Ontario also had a strong presence relative to the other provinces. The Canadian maple industry saw a 10% decline in the value of maple products from 2011 to 2012, from $339 million to $305 million.” and “Canada is also the world’s largest exporter of maple products, with exports valued at $278 million in 2013. Quebec accounted for 95.3% of Canadian maple product exports and New Brunswick for 3.7%, with the remaining maple-producing provinces accounting for only 1% of total exports.”
[All Canadian governmental information from reports available here.]
Without need to draw graphs of the figures provided by the Canadian government, we see that Ontario’s syrup production shows a decided up-down-up character, alternating good years with bad years 2008-2013. But, overall, starting in 2008 and ending in 2013, Canadian Maple syrup production doubled.
Doubling hardly seems like a sign of imminent demise.
Now, I don’t want to be accused (or convicted) of cherry-picking. So how have things fared since that little slice in time chosen by the Times to try to scare the naïve maple- syrup-on-our-pancakes crowd?

Bluntly put, Canadian syrup production is booming — up another 20% since 2013. Ontario has an up year in 2017, but it is a small slice of the pie, around 3%
The Canadian Government tells us: “For the second year in a row, Canadian maple syrup production continued to increase. In 2017, Canada recorded the highest numbers in maple syrup production and value since the data started being collected in 1924. After falling for two consecutive years (2014 and 2015), maple syrup production reached 12.5 million gallons in 2017 (Table 1.3.), up 41% from 2015 and 3% from 2016. In 2017, the value of maple syrup amounted to $494 million (Table 1.5.), a 38% and 2% increase from 2015 and 2016, respectively.”
In my mid-Hudson Valley (New York) rural area, maple syrup is still practiced as a family art each spring — with wood-fired sugar houses running day and night to evaporate off the water until the collected maple sap becomes maple syrup. It is my experience that there are good years and bad years, like any agricultural effort that depends on weather for its success.
Ottowa Ottawa, the capital of Ontario Canada, has monthly normal temperatures (1971-2000) as shown. Maple sap runs during the time circled in red — when nighttime temps are sub-zero and daytime temps are above zero.

As for Canada’s national syrup production, since we’ve just lived through “The 5 Hottest Years on Record” ?:

In that same time period, the five “hottest years”, Canada’s syrup industry has had four of the most productive years ever ! (2009 and 2015 were tied for fifth — I could have fudged it and called it five most productive years….).
Bottom Line: Readers may rest assured that North America’s temperate forests with their millions upon millions of maple trees — three species of which produce the best sap — are not going to quit doing what they have done for millennia. Where the trees are, there will be syrup makers and pancakes to put it on.
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** Kendra “Gloom is My Beat” Pierre-Louis has chosen this moniker for herself, see the linked twit page.
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Author’s Comment Policy:
Yes, I have made maple syrup from the sap of the three giant maples that grace our yard in front of our house with my kids when they were small. One son makes syrup every spring with a group of his neighbors. Syrup is part of the ebb and flow of the seasons here in the northeastern United States.
No, I am not an expert on maple syrup but I have a sharp eye for cherry-picked and omitted data and a nose for BS.
I intentionally do not draw a “trend line’ on the annual syrup production graph — trend lines are simply another way of adding artificial data to a data set. The raw data is what it is — it is best left to speak for itself.
I am happy to answer questions where I can and to read your comments and experiences with the exquisite art of making and enjoying maple syrup.
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2012 was also the year when over 3 million liters of maple syrup was stolen in Canada.
Gringo ==> A fabulous and fantastic story : Great Canadian Maple Syrup Heist.
Canadian Dollars 18.7 millions worth of syrup stolen from the strategic reserve (I bet some of you thought I was kidding above when I mention a Maple Syrup Strategic Reserve.)
Thanks for reminding us of this truly incredible story.
The infamous Maple Job is actually a big reveal as to the true interplanetary strategic significance of maple syrup!
Don’t tell anyone, but they say that maple syrup is the secret fuel that powers all the Omicron Cetian starships!
(blank space — insert any other tabloid worthy drivel here)
I just told someone about that a week ago as I was describing how I add two gallons to the Canadian total. I make it from Silver Maple and the syrup is very similar to the eastern type.
Gerald ==> The state of Minnesota provides a useful .pdf file on making syrup: quick quoting “Maple syrup can be made from any species of maple tree. Trees that can be tapped include: sugar, black, red and silver maple and box elder trees. Of all the maples, the highest concentration of sugar is found in the sap of the sugar maple.”
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I am surprised my the inclusion of the Box Elder. and interested to know that it is a type of maple (though the leaves look anything but maple-ish.
Gerald ==> Thanks for your “contribution” to the World Maple Syrup Production! (every little bit helps…)
In my opinion, the syrup one makes for one’s own family always tastes better!
Excellent expose’, Kip!
The other northern industry supposedly “threatened by climate change” is of course the ski industry. Not hardly. The ski industry is going like gangbusters. Oh, but they’ll whine, it’s “threatened”, so that means not now, but in the future. Sure, sure. Pull the other one.
Not surprisingly for an industry that is largely cottage industry producers, there is at least one web site that specializes in syrup production. https://www.themaplenews.com
“Climate change” seems not to be a concern of folks there, presumably because there are so many real problems that syrup producers face.
2019 season? Apparently about average in the US. Poor in Quebec.
Don ==> In Canada, mainly Quebec, it is no longer a cottage industry, but a major industry. There are about 12,000 maple farms in Canada, collectively having 47 million taps. Gross value of the maple crop in 2017 was C$ 493,709,000 — nearly half a billion Canadian dollars. Most have shifted to high tech tubing and negative pressure systems — and many sell their sap to processors rather than boil it down themselves.
In my area of the northeast US, mapling is both an industry and a cottage family effort — many farmers supplement farm income with syrup production each spring, selling directly to customers (skipping the middlemen).
Kendra “Gloom is My Beat” Pierre-Louis gets paid to publish fake news?
Robber ==> Gloom is on the NY Times Climate Team — the Climate Team has a strict editorial narrative that they have to write to — every story must detail how something good is going to be lost due to climate change. They are not required to do any real investigation — just find a negative hook and run with it. It took me only minutes to find that Canadian Syrup production is reall, in fact, booming!
Vampiric humans keeping tree slaves in order to feast upon their blood.
Yum, who’s for pancakes!
I’ve been able to use raw maple sap (from a neighbor – 5% SG) instead of plain water to brew beer.
Used a Pilsner yeast/grain recipe, it was very dry, but you could taste the maple, quite a refreshing highlight.
Just not as heavy as those which add the syrup to finish the brew…
The next experiment will be using Birch sap.
Yirgach ==> A very interesting idea….i’ll mention it to a couplew of home brewers I know.
If it weren’t for cherry picking, the alarmists would be hard pressed to have a scary story. If it’s not cherry picking of maple syrup production, sick polar bears, or tree rings, there would be no alarm. I wonder if the tree used to reconstruct the hockey stick was a cherry tree?? / s
I can speak with authority as in my cherry farming days, we would pick in excess of 1 MM cherries in a given season. ;<)
Farmer Ch E retired ==> I’ve never picked cherries (except to eat ripe off the tree). They are so small….have picked commercial pears in Oregon though — they are bigger and one feels more productive picking fifty pounds at a time into a special bag hung around one’s neck. Pears, of course, are picked when full size but stil green and hard — if picked ripe, they’ve gone by.
There were strict rules — absolutely no pears could be picked up if they had fallen or been knocked (by the pickers) onto the ground. Very strict rule. However, pickers were welcome to pick up these fallen pears for their own use — a real boon.
Easy to explain this….The Maples evolved after the MWP.
The NYT item you cite, like everything else to do with Global Warming was reported in New Zealand, of course.
Your facts were not reported here.
Nothing new about that.
Our media was going ballistic on Cyclone Fani for several days until it finally dawned that one Category 4 cyclone 20 entire years after the last one could hardly be blamed on the Cause of Everything, so they changed that to “biggest in recent years.” But when Indian authorities proved much better than Texan ones at protecting the citizenry from even a big storm, our media lost all interest and didn’t even report how India so successfully dealt with it.
David ==> US media, including the YTimes, did report on India’s successful plans to evacuate people threatened by Fani. Here and here.
I was in Costco this morning, here in Melbourne. The shelves were stacked with Canadian maple syrup. But I bought a bottle, just in case. (Strategic reserve!!!)
Also, given that the sap is distilled down to one gallon from 40, why are none of the greenies complaining about maple syrup’s carbon footprint?
William ==> Even greens love the magic maple elixir ! Modern processing uses reverse osmosis to remove excess water and produce syrup….although most artisan produces in my area still use large shallow pans heated by wood fires.
They’ve already fingered “climate change” for last year’s production but this time it’s the cold what done it! I guess that qualifies as more volatile, shame about the fact that production from 2008 increased by 244% to 2017 dropping back to a shocking 190% increase for the period to 2018! 😉
* http://www.canadiangrocer.com/top-stories/headlines/canadian-maple-syrup-production-down-22-in-2018-84623
** https://www.statista.com/statistics/370150/canadian-maple-syrup-production/
Whoops! My rusty math above; minus 100 from my figures. Percentage increase doesn’t look as impressive as it actually is though! ;-(
Scott ==> Whenever I trry to use the Statistica site, I hit a pay wall. Have you got an “in” there?
No Kip, weird though that it worked for me when I first went there but now it is asking me to subscribe. I wouldn’t have posted the link otherwise. I should have captured an image of the relevant graph. I’ll know next time!
Good post Kip,
I do enjoy your intelligent and well constructed reportage!
Scott ==> Thanks. Their paywalldoesn’t seem to be cookie based, either. Anyone out here know?
Terrific article Kip!
Plant studies with elevated CO2 levels of course show increased growth. However woody stemmed plants do best, trees especially.
Sugar Maple trees outperformed almost all others. With the environment enriched from increasing CO2 by 300 parts per million, in 22 studies, they found an average increase in biomass of 113.8%.
That’s more than doubling!
Sugar Maples love CO2 even more than your average plant.
http://www.co2science.org/data/plant_growth/plantgrowth.php
http://www.co2science.org/data/plant_growth/dry/a/acers.php
Surprised?
Maybe at the magnitude of the increase but then again, plants don’t follow political narratives from scientifically challenged humans that state “CO2 is pollution” or “carbon pollution is causing a climate crisis”.
Plants and trees, know that we are actually experiencing a climate optimum(still short of global temperatures experienced during the Holocene Climate Optimum, just over 5,000 year ago)
They use the extra CO2 as atmospheric fertilizer via the irrefutable scientific law of photosynthesis.
Sunshine +H2O +CO2 +Minerals =O2 +Food(sugars)
https://en.wikipedia.org/wiki/Holocene_climatic_optimum
“The Holocene Climate Optimum (HCO) was a warm period during roughly the interval 9,000 to 5,000 years BP, with a thermal maximum around 8000 years BP”
“The Holocene Climate Optimum warm event consisted of increases of up to 4 °C near the North Pole (in one study, winter warming of 3 to 9 °C and summer of 2 to 6 °C in northern central Siberia).”
“Out of 140 sites across the western Arctic, there is clear evidence for conditions warmer than now at 120 sites. At 16 sites, where quantitative estimates have been obtained, local HTM temperatures were on average 1.6±0.8 °C higher than now.”
Mike Maguire ==> Thanks for providing the longer view…and the links to CO2Science. This subject is an interesting thing to watch work itself out.
Thanks, Kip, lots of memories brought back by your article. We try to get over from the UK every couple of years when finances allow to see our Canadian cousins who live in an idyllic (in the summer!!) spot on the NB coastline. A couple of visits have coincided with the maple sap gathering season and the vision of the tap lines running down the hillsides will always be with me. I was unaware that negative pressure was applied to aid the flow – seems obvious now you’ve explained.
However, my overwhelming memory will always be of a visit to a maple sap processor who demonstrated to us the simple conversion of syrup to maple butter. Having agitated the syrup for a while with a stirrer he took it out of the vessel with a golf ball sized lump of butter on the end. He offered this to my wife who was standing at the front, presumably he anticipated she would take a small fingerful, instead of which she wolfed the lot to the amusement of everybody except herself. The expression on her face was a delight! “But they call it butter”, she had not caught on to just how sweet it would be.
It’s reassuring to know that the industry is booming and has a bright future.
PeterGB ==> Gratifying to know that my small efforts to bring a little light to this propaganda darkened topic brought fond memories to a reader. Thank you for sharing.
Kip,
Thanks for another well considered debunking of environmentalist propaganda.
It strikes me that Climate Change is the new Primary Sin of Humanity wrt Maple Syrup production taking over from the Acid Rain overegging, although if one googles maple syrup and acid rain, there is still activity on that issue.
Tom Lehrer’s humorous work certainly seems timeless. I’m constantly reminded of him by many issues that are still current.
“Pollution” by Tom Lehrer
https://tinyurl.com/hl2op9h
From recollection, in the late 70s or early 80’s one started to get Acid Rain panic in Algonquin Park (Ontario) literature. This went on as I recall for about 5 or 6 years, until they finally realized that the dire predictions weren’t happening.
It seemed plausible as the Nickel mining and smelting operations at Sudbury Ontario were not too distant as the crow flies, and also because there are indeed acidified lakes closer to Sudbury.
However I think Inco had put up their super stack in 1972.
At the time I certainly took the scare seriously, however in retrospect it was another overegging of claims that I didn’t recognize at the time.
P.S. Growing up in Montreal, spring Sugaring off was a yearly tradition with Maple taffy on snow, and French Canadian Pea Soup. Good Times
Brent ==> Thanks for checking in and sharing.
Very dirty coal fired electrical plants can throw enough garbage in the air to make rain downwind sufficiently acid to be a problem. But most the panic has passed as plant stacks get scrubbers .
Kip, I had a farm in Eastern Ontario to raise 6 kids on plus two nieces that their parents couldnt look after adequately. We made several hundred gallons and a few hundred pounds of sugar using a cast iron bath tub which I bricked in with a firebox underneath it that could take cordwood logs. We boiled down and then finished it in in the kichen. Man, the soles of our boots were sticking to the floor as we transferred the nearly boiled down sap in buckets.
One mid march, it froze up again something fierce and a dozen plastic garbage pails of sap froze right up. I wondered if the liquid expelled the sugar as it froze. I chipped some of the ice and put it into a pot and boiled it down. Sure enough, there was no sugar in it! I let the pails thaw until I could remove about 3/4 of volume as barren ice and found we could boil the concentrated liquid down quickly. It worked out just fine.
You can also boil sap from birch trees but it is typically 80gal to a gallon of syrup, double the water of the maple. The sap of both trees can be drunk as a tonic. Its very refreshing right from the tree. Birch sap is glucose and maple, sucrose. Not well known is yo.u can also tap the trees in the fall, but I don’t know anyone who does this .
Gary ==> Somehow missed your comment earlier. Thanks sharing your personal experience. We too did some finish mapling in the kitchen –the condensation from the boiled off water washed the walls, unfortunately, not evenly. Had quite a time cleaning everything up.
They are reusing the same story. Last year it was also mentioned:
https://www.cbc.ca/life/food/please-not-the-syrup-climate-change-could-extinguish-sugar-maple-growth-1.4496072
And back in 2017:
https://www.ctvnews.ca/sci-tech/maple-syrup-producers-blame-climate-change-for-production-drop-1.3295481
back in 2015: https://www.nationalgeographic.com/people-and-culture/food/the-plate/2015/12/02/global-warming-pushes-maple-trees-syrup-to-the-brink/
Back in 2014: https://climatechange.novascotia.ca/sites/default/files/uploads/2013-2014_Dal.pdf
Back in 2009: https://www.sciencedirect.com/science/article/pii/S0378112709006720
Getting tired of reading the same non-sense story over and over again.
Peter ==> Repeating the same untruth over and over generally is successful in getting the unthinking to believe it.
Trend Line ==> I mention that I did not draw a trend linbe on the Syrup Production graph in the Author’s Comment Policy section.
Briggs explains why here.