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World Has Many More Trees Than Previously Thought, New Report Says
WSJ ^ | Mark Armao

Posted on 09/02/2015 11:23:33 AM PDT by BenLurkin

There are just over three trillion trees in the world, a figure that dwarfs previous estimates, according to the most comprehensive census yet of global forestation.

Using satellite imagery as well as ground-based measurements from around the world, a team led by researchers at Yale University created the first globally comprehensive map of tree density. Their findings were published in the journal Nature on Wednesday.

A previous study that drew on satellite imagery estimated that the total number of trees was around 400 billion. The new estimate of 3.04 trillion is multiple times that number, bringing the ratio of trees per person to 422 to 1.

While the density of foliage was surprisingly high overall, the researchers cautioned that global vegetation is still in decline. The number of trees on Earth has fallen by 46% since the beginning of human civilization, according to the report. The researchers said they believed the findings would provide a valuable baseline for future research on environment and ecosystems.

“The previous information that we had about the global forest system all came from satellite images...we’re using all this information to provide more detailed understanding of what’s going on below the surface [of the canopy],” said Thomas Crowther, a postdoctoral fellow at the Yale School of Forestry and Environmental Studies and the lead author of the study. “The numbers that we’ve generated are going to be useful for a wide variety of applications.”

The map was generated using 429,775 ground-based measurements in more than 50 countries, collected from a variety of sources, including the Smithsonian Tropical Research Institute, the National Forest Inventory and several peer-reviewed studies, said Henry Glick, co-director of the Ucross High Plains Stewardship Initiative, a research program within the Yale School of Forestry and Environmental Studies.

(Excerpt) Read more at wsj.com ...


TOPICS: Science
KEYWORDS: agw; americanchestnut; climatechange; climatechangefraud; climatechangehoax; co2; deforestation; doomage; drought; energy; epa; extinction; forest; forests; globalwarming; globalwarminghoax; glowbullwarming; godsgravesglyphs; gorebullwarming; ipcc; liars; liberalagenda; methane; opec; passengerpigeon; petroleum; popefrancis; refoliation; romancatholicism; scientists; settledscience; settledsciene; tree; trees; water
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To: BenLurkin

....three trillion trees yet there are numbnuts who will sit in a tree to protest because it will be cut down.


21 posted on 09/02/2015 3:32:06 PM PDT by minnesota_bound
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To: BenLurkin; libwacker; Red Badger; JoeProBono; CivilWarBrewing; TBP; cripplecreek; ...

And here is the Daily Mail with an article saying that we are destroying 15 billion trees a year.

http://www.dailymail.co.uk/sciencetech/article-3219790/Number-trees-Earth-HALVED-beginning-human-civilisation-15-billion-lost-YEAR.html

And how does anyone know how many trees have grown since or before human civilization came about.


22 posted on 09/02/2015 3:44:22 PM PDT by GreyFriar (Spearhead - 3rd Armored Division 75-78 & 83-87)
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To: GreyFriar

3 trillion divided by 15 billion = never run out as trees grow back.


23 posted on 09/02/2015 4:02:01 PM PDT by minnesota_bound
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To: GreyFriar

“We’ve nearly halved the number of trees on the planet, and we’ve seen the impacts on climate and human health as a result,” Crowther said. “This study highlights how much more effort is needed if we are to restore healthy forests worldwide.”

http://phys.org/news/2015-09-trees-previously-believed.html


24 posted on 09/02/2015 4:06:34 PM PDT by JoeProBono (SOME IMAGES MAY BE DISTURBING VIEWER DISCRETION IS ADVISED;-{)
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To: minnesota_bound

Oh my gosh, “trees grow back?” I never knew that. I was taught in the guvmint skools that trees were too valuable to be used because once they were cut down, the land was paved over or let to erode into great canyons. Gee, does the guvmint know that trees grow back? Somebody ought to tell them and they can spend a billion dollar study to see if it is actually true.


25 posted on 09/02/2015 4:16:18 PM PDT by GreyFriar (Spearhead - 3rd Armored Division 75-78 & 83-87)
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To: GreyFriar

I think this is a SWAG (Scientific Wild-Ass Guess).


26 posted on 09/02/2015 5:09:23 PM PDT by zot
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27 posted on 09/03/2015 3:03:21 PM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW)
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The big concern is the political polarization between the redwoods and the johnbirches.

28 posted on 09/04/2015 12:42:04 PM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW)
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To: LambSlave

UMMM....Trees respirate CO2. They aspirate oxygen.


29 posted on 09/04/2015 12:46:24 PM PDT by Safetgiver ( Islam makes barbarism look genteel.)
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To: Safetgiver

Yep, sometimes I post without my brain even engaging. It happens.


30 posted on 09/04/2015 2:25:19 PM PDT by LambSlave
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To: LambSlave

No foul.


31 posted on 09/04/2015 2:45:08 PM PDT by Safetgiver ( Islam makes barbarism look genteel.)
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To: BenLurkin; 11B40; A Balrog of Morgoth; A message; ACelt; Aeronaut; AFPhys; AlexW; alrea; ...
DOOMAGE!

Global Warming PING!

You have been pinged because of your interest in environmentalism, alarmist wackos, mainstream media doomsday hype, and other issues pertaining to global warming.

Freep-mail me to get on or off: Add me / Remove me

Please ping me to all note-worthy threads on global warming.

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32 posted on 09/05/2015 11:29:01 PM PDT by Tolerance Sucks Rocks (Democrats and GOP-e: a difference of degree, not philosophy)
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To: BenLurkin

One would think that this is another demonstration why the climate models are wrong.


33 posted on 09/06/2015 6:12:52 AM PDT by dila813
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