Is the Amazon Rainforest Drying Out?

The trees and vegetation of the Peruvian Amazon are adapting to a warmer, drier future—but can they adapt fast enough?















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So the scientists, like the trees, are racing against time. Because rainfall, geology and topography in the western Amazon have given rise to a mosaic of ecosystems so diverse that they are virtually unknown, scientists have little data on which to base conservation plans, Asner says.

Whereas Feeley tracks changes on the ground, Asner flies over the forest in a plane equipped with a laser-imaging system and a supercooled spectrometer that can detect 21 chemicals in the leaves of canopy trees. After a decade of comparing spectrometry data with the chemistry of leaves lopped from treetops, Asner says he can identify chemical “fingerprints” of species with 80 percent accuracy—enough to create a diversity map of canopy species in the western Amazon, from Colombia to Bolivia, that will give scientists a base line against which to compare future changes. He is also measuring forest carbon, which will aid in calculating greenhouse gases released by deforestation.

As some species thrive and others fail to adapt, climate change will produce “winners and losers,” says Asner, who presented his preliminary findings on the drought damage on December 7 at the American Geophysical Union meeting in San Francisco.

He foresees “major shifts in the basic configuration of the Amazon” in a fairly short time. “I’m 44,” he says. “If I am lucky enough to live to be 80, I will see all of it.”



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  1. 1. brainguy 05:26 PM 12/24/12

    Not that I disagree with the whole preservation trend, but is "funny" how the first world destroyed their green, and now that the only real untouched green is outside their borders they want to play nice and fair, pro green.

    When in fact, they (the 1st world) are the hungry ones for the now very expensive green and want to have a word in such decisions.

    Hey, shut up about this and start naming and finger pointing at the demand, which resides not very far from where this article flourished from.

    After all you only "lost" your green because you have a demand for it, otherwise you'd still have it, like they do.

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  2. 2. singing flea 06:10 PM 12/24/12

    Once again the concept that is not the change that is the problem, but rather the rate of change that is the threat to our biosphere, is at the heart of the issue. The problem is that those with the power to make changes to law that can help mitigate a future disaster just can't do the math. This is the same group of people that want to cut spending for education and research. You can't educate people that can understand the concept of a chain saw much better then the concept of conservation.

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  3. 3. dwbd in reply to singing flea 06:29 PM 12/24/12

    "...The problem is that those with the power to make changes to law that can help mitigate a future disaster just can't do the math..."

    Oh, they can do the math alright, or have experts do the math for them. THE PROBLEM is Big Carbon, Big Agro, Big Banking stuff so many dollars into the politician's pockets that they could care less about Doing-the-Right-Thing. The modern day mantra for politicians is "What can I do to keep the Cash flowing".

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  4. 4. Metridia 01:56 PM 12/25/12

    @brainguy- reducing demand in the West (actually China is the big source for commodities demand now) is absolutely tilting at windmills, unless there is some market signal (carbon tax, etc) that internalizes the externality represented by environmental degradation. And ultimately that requires cooperation between many countries, including China. While a carbon tax could fund forest buyouts, it's unlikely to be signed up to by anyone else than Western Europe and maybe the US (stretching it). Whereas if you try to achieve preservation at the supply side, there is only one country that has to be convinced. Moreover, actually the US has grown back a lot of forests recently. Environmental preservation isn't and shouldn't be a morality play about who's to blame, it should be about doing whatever it takes to preserve and sustain humanity and the planet.

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  5. 5. Inside-Peru 02:05 PM 12/25/12

    I would just like to add a few observations.

    The US and many other countries have already destroyed most of their forest. Having lived 7 years on the Olympic Peninsula, I have seen first hand that the destruction of forests continues unabated in the United States. There is almost zero original (old-growth) forest left at all.

    So advice from the USA as an entity in itself is pretty worthless. Even valuable recommendations from the scientific community are taken with a grain of salt, since usually and change in attitude is suggested while in their own countries such a change has never occurred.

    David Schneider, Los Organos, Peru - Dual Citzenship - Inside-Peru

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  6. 6. brainguy 03:53 PM 12/25/12

    @Metridia

    Not for the kind of commodities we are talking about it. OUR rainforest most valuable vs easy product is wood. High quality wood.

    Of course, after you got "rid" of the wood (and the "land" is basically destroyed) comes farming and cropping. But the valuable asset here is wood. And China holds no 2nd or 3rd place in it's demand. The US and the EU are the biggest consumers.

    That said my friend, carbon taxes are the most inhumane tax one EVER could come up with, after all, WE A CARBON BEIGNS! Taxing carbon would be the same as taxing life. God can... we can't, and should't.

    The truth is, corps world finances the green orgs for their own purposes. And the carbon ordeal... well suffice to say it comes from Al Gore. And like Icke's said once, if comes from Mr Gore, it's a scam. I agree 100% with him!! Al Gore should be beaten, crucified and killed and buried in some unmarked grave somewhere nasty.

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  7. 7. Inside-Peru 04:35 PM 12/25/12

    Hmmm, some strong opinions here. That's okay, though!

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  8. 8. em_allways_right in reply to brainguy 07:11 PM 12/25/12

    The 3rd world is cutting down their forests for their own reasons, some of which are exports. North America is not where all that Palm Oil goes. There are environmentalists world wide. You lack what your handle claims.

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  9. 9. em_allways_right in reply to Inside-Peru 07:14 PM 12/25/12

    People here in the U.S. fight hard to stop clear cut logging. If not it would already be all gone. It is a world-wide fight between those who would put short-term proffits before preservation.

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  10. 10. Inside-Peru 07:41 PM 12/25/12

    The problem goes deeper than just who's cutting and who's not. Increasing population demands land, demands cutting trees and burning land off the land. These are subsistence farmers living on the edge of starvation.

    Likely, more land is stripped this way then by logging companies. It's a question of do I feed my family or not cut the trees and just let my family starve?

    This happened in the US and is happening around the world and will not stop until the population diminishes or God steps in... as he will do soon :-)

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  11. 11. yarberry in reply to Inside-Peru 11:25 AM 12/26/12

    It does come down to population. Too many people and limited space and availability of resources.

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  12. 12. johnson in reply to brainguy 03:35 PM 12/27/12

    EXCEllENt!! I WAS GOING TO SAY ALMOST THE SAME THING...

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  13. 13. Hautzinger in reply to singing flea 06:09 PM 12/27/12

    Why do you confuse education with government? The more government is involved with education the worse it gets.

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  14. 14. Hautzinger in reply to Inside-Peru 06:14 PM 12/27/12

    There is more bio diversity now than at any time in human history. This is especially true in the US where the plains were covered with grass and the resultant animal life and is now fertile with pasture, cattle and corn and wheat farms. Short sighted people see this and long for the past of horses and cows. It ain't going to happen.

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  15. 15. mikegtu2005 in reply to Inside-Peru 08:45 PM 12/27/12

    Theres no bloody God to step in . WHEN ANY life form exceeds its equilibrium with other life form s on earth than natural balancers begin to take effect.
    proof is all around in the natural world and ALSO in past civilizations where they destroyed their immediate enviroment and the culture died, A note here is the cultural behaviour died out BUT the human species continued.

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  16. 16. mikegtu2005 in reply to Hautzinger 08:51 PM 12/27/12

    cattle corn and wheat etc arent biodiversity they are mono cultural only held in place by chemical agents of all forms, we have many people here in Australia who look at the harsh interior of semi arid australia and say theres nothing there , in the same way you look at the grasses of the USA and say it was covered with grasses as if to suggest it was a mono cultural environment

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  17. 17. mikegtu2005 09:06 PM 12/27/12

    There will be a tipping event that humans experience that will rebalance the world s life forms , with our intelligence the destruction(progress for us) will continue and species will be lost( in time new species will evolve ) BUT there will be a tipping point where our numbers WILL be dramatically reduced. I have no idea what a sustainable number is but I bet its probably below our current number (perhaps way below) AND I think it could go multiples higher (20billion) before the cold the earth has, develops into pneunomia and the earth either dies with us or survives with a remnant of our species. I back the second case scenario.

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  18. 18. Bertie Fox 03:25 AM 12/28/12

    The population pressure for new land could be met by educating the people in permaculture methods of farming. That way the forest could be changed at the fringes into forest farming plus crop cultivation that does minimal damage. Permaculture in this kind of climate is capable of producing higher total yields than conventional agriculture, and what is more, it is sustainable.

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  19. 19. nirmalgopa 09:36 AM 12/28/12

    We are all so blind.


    Need makes hungry to life,
    Plant wants to fly as kite,
    So man want to cut its hand
    No need forest, don't it band.

    What we think ?
    Are we king ?
    Why man create like this mind ?
    Actually we are all so blind.

    ---- Nirmalendu Das

    Dated: 28-12-2012.
    Email: nirmalgopa@gmail.com

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  20. 20. PatrickR 01:12 PM 12/28/12

    Renewable resources are unable,or not given time to renew, so as we clear the earth of its forests future generations face potential disaster and hardships on an unimaginable scale if this trend is not reversed. Scientist estimate that it would take seven planet earths for the population of the world to use the resources that the U.S. does in able to live like we do. A very disturbing estimation.

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  21. 21. MyLittleRadish 01:52 PM 12/28/12

    It's overpopulation: That's the problem with us as a species. As obvious as our domination is, it's persistently avoided. There's an innate disrespect for the earth in our irresponsibility, a smallness of future perspective.

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  22. 22. Postman1 in reply to PatrickR 02:42 PM 12/28/12

    PatrickR - "Seven Earths" ? Your source for this nonsense?

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  23. 23. Carlyle 04:21 AM 12/31/12

    Few problems have simple solutions. Forestry management is practical on a sustainable basis. Unfortunately too frequently the battle is fought more on ideological grounds than proven scientifically based sustainability grounds. There is room in the middle between the extremes of open slather & lock up.
    Unfortunately in developing countries or countries not having the ability to enforce sensible regulation, rapacious practices often rule.
    Some importing countries do have regulations requiring proof that the timber originates from sustainable forestry practicing sources. This is to be encouraged. Unfortunately, in many areas the rapacious model prevails with some countries, Malaysia being one, being the predators in the surrounding region. They need to be continually exposed & condemned. It has to be said, corruption lubricates the bad practices with the local populations inevitably being short-changed as well as losing their resource.

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  24. 24. IslandGardener in reply to yarberry 03:29 AM 1/1/13

    Well said yarberry.
    We _all_ need to reduce our populations, in rich countries and in poor countries.

    Here in Britain, which on a global scale is rich (though our elites are making sure that the rich get richer while the poor get poorer, so it doesn't feel like it for most of us) we're increasing our level of woodland cover, after the terrible woodland destruction of the 1950s, 1960s and 1970s.

    But we still don't have absolute protection for all our ancient woods. We're only just starting to discuss population policy. We're still not growing almost all our food - we still import a lot. We still eat too much meat and other animal produce, so we waste land to grow crops for animals. We still haven't protected the habitats around our coastline (some marine conservation zones will be created this year, but most of the proposed sites won't get protected because our government is ecologically ignorant and illiterate). And we're still producing most of our food from annual plants rather than perennial plants.

    The crucial point for people in Peru and other poor countries is that they won't just be doing the whole world a favour if they control their population size, grow food in sustainable ways, and protect their forests and other habitats - they'll be doing themselves a favour as well.

    The Roman Catholic church needs to grow up and accept that contraception isn't wrong. We'd stand a much better chance of living in a healthy decent civilised world if all religions and philosophies accepted that contraception is a moral necessity.

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  25. 25. `Phloxdiffusa 12:30 PM 1/3/13

    I was in Tingo Maria in 2007/2008. Tingo Maria is situated in the Peruvian Amazon rainforest. One night it started raining and it did not stop for about 5 hours. The rain was so heavy that I thought the town was going to flood. The swimming pool at the resort we stayed at overflowed, and the lawn was completed flooded the next morning. I observed at least 20 cm of rainfall in the pool at least. You could not sleep due the noise of the rainfall. As I am a forester with a BSc and have a MSc in Environmental Sciences, I cannot recall observing any signs of moisture or heat stress in or around Tingo Maria as it relates to tree condition. One thing though is that soils are very fine textured, highly oxidized, and do not appear to be able to store much moisture. Obviously the existence of dead tree roots allows for increased soil moisture retention. Whereas cleared pasture over time loses those root channels, and results in greater overland flow of heavy rain events, leading to lower evapotranspiration. So in my opinion to conserve the Amazon rainforest it will necessary to halt deforestation and conversion of the more dynamic and diverse native rainforest.

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