Canadian forests a refuge as warming creeps north

June 16, 2016, Harvard University
Black spruce. Credit: Loïc D'Orangeville

In the Canadian province of Quebec, a study of more than 26,000 trees across an area the size of Spain forecasts potential winners and losers in a changing climate.

The study, published today in the journal Science, shows that boreal forests in far-northern latitudes may one day act as a refuge for black spruce, the foundational tree for the northwoods ecosystem - a major source of the world's paper; home to caribou, snowshoe hare, lynx, and sable; and nesting site for dozens of migratory bird species.

"During this century, the northwoods will experience some of the Earth's largest increases in temperature," says Loïc D'Orangeville, postdoctoral researcher at Université du Québec à Montréal and Indiana University, who led the collaboration of scientists from six institutions in the U.S. and Canada.

Northern boreal forests are a crucial part of the global climate puzzle, comprising nearly 30 percent of the Earth's forested area and storing at least 20 percent of its carbon. The study's tree ring analysis revealed these forests' sensitivity to changes in temperature and precipitation.

"A warming climate increases the amount of water boreal forests need to survive," explains D'Orangeville. "It's possible that only a relatively small part of North America's boreal forest will have enough water to compensate for the increased demand."

Boreal forest. Credit: Loïc D'Orangeville

North of a certain latitude (broadly 49 degrees North), the study showed, warming melts snow earlier and lengthens the growing season: for tree growth. "Right now - June and July - is when most of the annual takes place in the boreal forest," says D'Orangeville. Climate models predict that by 2050, the growing season in the study area will have expanded by 3 weeks.

South of the 49th parallel, however, warming and the lengthened are more likely to cause drought stress that could overwhelm black spruce. The researchers say this may explain increased tree mortality already being observed in the region.

"But as you move northwards, temperatures cool, and evaporation diminishes," says D'Orangeville. As climate warms through 2070, more than two-thirds of the forested territory just above the 49th parallel should still be showing a positive response.

"This part of the forest could adapt to climate change in our lifetime, if future warming stays below the temperature threshold," says Neil Pederson, co-author of the study and a senior ecologist at Harvard Forest. "But the future cannot be perfectly predicted." And, he cautions, unpredictable factors, such as the recent mega-fires in boreal regions of western Canada and Alaska, could disrupt this dynamic.

Still, the study offers a note of hope. "In a world where many ecological forecasts appear dire for plants, animals, and people," says Pederson, "identifying areas that could serve as potential havens for biodiversity during potentially tumultuous times is good news."

Explore further: Canada wildfires in 'bullseye' of warming planet trends

More information: Northeastern North America as a potential refugium for boreal forests in a warming climate, Science, science.sciencemag.org/cgi/doi … 1126/science.aaf4951

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antigoracle
1 / 5 (7) Jun 16, 2016
The amusing thing about this "study" is that this region showed cooling right up to the mid 1990s, after which they started cooking the data and astonishingly the global warming pause began.
http://data.giss....amp;ds=1
BiteMe
Jun 16, 2016
This comment has been removed by a moderator.
antigoracle
1 / 5 (6) Jun 16, 2016
In the Canadian province of Quebec, a STUDY of more than 26,000 trees across an area the size of Spain forecasts potential winners and losers in a changing climate.

The STUDY, published today in the journal Science

Another retard who cannot read, far less comprehend.
Not really surprising from a retard that doesn't know his ass from his mouth but would rush to open it.
unrealone1
1 / 5 (5) Jun 17, 2016
Station move, homogenisation of the data, data adjustments?
Have any of these stations been verified after the "homogeneity adjustment" process?
http://data.giss....mp;ds=14
antigoracle
1 / 5 (5) Jun 17, 2016
Have any of these stations been verified after the "homogeneity adjustment" process?

It's most amusing how blatantly obvious these "adjustments" were made to propagate the AGW lie.
Burzghash
5 / 5 (7) Jun 17, 2016
What's amusing is pretending that Google doesn't exist and that we can't verify for ourselves that virtually every scientific organization on the planet which has taken a stance on the issue of AGW agrees that it is not only reality, but that man is in fact exacerbating the process. But oh, we're supposed to believe that some comment section scientist, who has no relevant credentials, education, experience, research, publications, or scientific accomplishments of note whatsoever is in a position to refute actual scientists.

Nah. I'm good.

Since the subject is science, I'm going to what the scientists are saying.
Burzghash
5 / 5 (7) Jun 17, 2016
Oh, and by scientists I mean The United Nations IPCC, American Meteorological Society, NOAA, the U.S. National Academy of Sciences, NASA, the EPA, American Geophysical Union, the National Center for Atmospheric Research, Royal Society of the United Kingdom,Canadian Meteorological and Oceanographic Society, Science Council of Japan, Russian Academy of Science, Brazilian Academy of Sciences, Royal Society of Canada, Chinese Academy of Sciences, French Academy of Sciences, German Academy of Natural Scientists Leopoldina, Indian National Science Academy, Accademia Nazionale dei Lincei (Italy), Royal Society (UK), the Australian Academy of Sciences, Royal Flemish Academy of Belgium for Sciences and the Arts...
Burzghash
5 / 5 (7) Jun 17, 2016
Indonesian Academy of Sciences, Royal Irish Academy, Academy of Sciences Malaysia, Academy Council of the Royal Society of New Zealand, Royal Swedish Academy of Sciences, etc., etc., etc.

And not the National Science Academy of Antigoracle, scientific-fucking-irrelevant.
antigoracle
1.3 / 5 (6) Jun 17, 2016
Yep, scientists like the ones who gave us 66 excuses for the globull warming pause.
http://hockeyscht...-26.html
Burzghash
5 / 5 (7) Jun 18, 2016
Oh wow, what a compelling argument! On one side we have virtually every major scientific organization on the planet. And on your side we have... shitty blog links with cherry-picked data.

How very compelling.

It's adorable to watch you sit there and pretend that it's at all likely that virtually every major scientific organization on the planet is coordinating across both geological and political borders, to perpetrate a MONUMENTAL hoax the likes of which we have never seen in human history, risking their jobs, reputations and livelihoods, all for... what? To maintain their absolutely LAVISH researcher lifestyles? Yeah, those shifty researchers! Always playing with the data to maintain their fancy life of living on research vessels and driving Priuses.

Sorry, Antigoracle. You're not a "truth-seeker". You're a fucking conspiracy theorist regurgitating shitty blog links. And you deserve to be treated as such.

Come back when you have an actual scientific rebuttal to make.
Burzghash
5 / 5 (5) Jun 18, 2016
Hint: A scientific rebuttal involves actual credentials, years of research, publishing your findings, and having them critiqued by other experts who have dedicated decades of their life to the field. it does not involve regurgitating shitty non-scientifically accredited blog links and deluding yourself into thinking that that carries more weight and credibility than NASA.

Silly little whack-a-doodle.

For everyone else who happens by, you should know that Antigoracle suffers from a well-known phenomena called the Dunning Kruger effect:

https://pbs.twimg...BNvV.png

Note that he is firmly situated at the top of the leftmost peak, having convinced himself that, after a few weekends of reading shitty conspiracy theorist blogs, he is now in a position to refute people who are actually qualified to weigh in on this subject.
antigoracle
1 / 5 (5) Jun 18, 2016
The ignoRANT of the consummate Chicken Little retard, mindlessly parroting the catechisms of the cult. It's a pity that science can't grow it a brain, for then, perhaps, it might be able to click those links and realize that they lead to studies published by the very same scientific organizations it has faith in.
Burzghash
5 / 5 (6) Jun 18, 2016
Oh hey, how about that. In lieu of an actual scientific rebuttal, Antigoracle has.. fluffy poetry and ad-hominem.

Gee, who would possibly have imagined?

Do you think maybe you can regurgitate some more shitty Geocities blogs at us? Maybe some youtube videos? We're sure to believe your side of the argumenta ANY day now.
Burzghash
5 / 5 (6) Jun 18, 2016
PS: I'm more inclined to believe the scientists to correctly interpret their own data, especially given the massive overwhelming consensus which exists on the matter, instead of the shitty Geocities blogger who cherry-picks his data and draws his own non-expert opinions and conclusions about them. Your scientifically irrelevant layman's opinion does not carry the same weight as that of actual scientists.

Fuck off with your shitty blogs and youtube videos. You carry no weight here, conspiracy theorist.
antigoracle
1 / 5 (4) Jun 18, 2016
Incapable of independent thought, the Chicken Little retard can only rant the catechisms, fed to it by the high priests of the cult. In its abject ignorance it fails to realize that it is precisely what it accuses the heretics of. Con.sensus....con.sensus....cherry-pick...cherry-pick..
Burzghash
5 / 5 (5) Jun 18, 2016
Backed into a corner and unable to provide any scientifically credible argument whatsoever, the conspiracy theorist desperately cries, "Sheep! Sheep all of you! Question everything! Don't listen to virtually every scientific organization on the planet! Here, blindly believe my shitty unaccredited blog post! That's where you'll find the TRUTH!"
Burzghash
5 / 5 (4) Jun 18, 2016
"I know you guys listen to experts when it comes to law, your automobile, your health... but you shouldn't when it comes to study of the intricacies of the climate of the planet! You should DEFINITELY take the word of some scientifically unaccredited blog over The United Nations IPCC, American Meteorological Society, NOAA, the U.S. National Academy of Sciences, NASA, the EPA, American Geophysical Union, the National Center for Atmospheric Research, Royal Society of the United Kingdom,Canadian Meteorological and Oceanographic Society, Science Council of Japan, Russian Academy of Science, Brazilian Academy of Sciences, Royal Society of Canada, Chinese Academy of Sciences, French Academy of Sciences, German Academy of Natural Scientists Leopoldina, Indian National Science Academy, Accademia Nazionale dei Lincei (Italy), Royal Society (UK), the Australian Academy of Sciences, Royal Flemish Academy of Belgium for Sciences and the Arts...
Maggnus
5 / 5 (3) Jun 18, 2016
It's adorable to watch you sit there and pretend that it's at all likely that virtually every major scientific organization on the planet is coordinating across both geological and political borders, to perpetrate a MONUMENTAL hoax the likes of which we have never seen in human history, risking their jobs, reputations and livelihoods, all for... what? To maintain their absolutely LAVISH researcher lifestyles? Yeah, those shifty researchers! Always playing with the data to maintain their fancy life of living on research vessels and driving Priuses.

Sorry, Antigoracle. You're not a "truth-seeker". You're a fucking conspiracy theorist regurgitating shitty blog links. And you deserve to be treated as such.

Come back when you have an actual scientific rebuttal to make


***SLOW CLAP***** A voice of reason.
unrealone1
1 / 5 (4) Jun 19, 2016
Bureau Just Makes Stuff Up: Deniliquin Remodelled so Rutherglen can be Homogenized
http://jenniferma...genized/
antigoracle
1 / 5 (3) Jun 20, 2016
Oh, the "intelligence" of the Chicken Little who gets his "science" from a political organization whose existence depends on propagating their lies -- The United Nations IPCC

UN climate panel head steps down amid sex claims. http://phys.org/n...sex.html

UN climate report riddled with errors on glaciers. http://phys.org/n...ers.html

Climate change: drought benchmark is flawed http://phys.org/n...wed.html

Shootist
1 / 5 (2) Jun 22, 2016
If you're afraid paint your roofs white. It won't do much but it will do more than anything less than removing China and India from the planet's surface.

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