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November 10th, 2009

http://brighterplanet.com/project_fund_projects/48

+++

i just voted three times for this awesome project which will help move Appalachia away from MTR mining and towards a sustainable, locally-owned, decentralized model [by utilizing timber industry byproducts.]

the project will entail "feedstock feasibility studies and Forest Stewardship Council (FSC) certification to ensure sustainable forestry."

please vote today! signing up for brighterplanet.com only takes about 75 seconds. they are in second place and the prize is a $5000 grant!

other suggestions on how to win this thing:

- blog about it!
- send the link and description out to list serves
- make it a point of process at any meetings which might relate
[eco-advocates? new college climate justice squad? alliance of concerned students? everglades earth first? black manatee collective? st. pete for peace?]
- send a LTE [letter to the editor] in your local paper
- etc etc!!

xoxo and THANKS!

as follows is the full project description:

click to read more about the project! )

The current voting period ends on SUNDAY the 15th of November, so please don't put this off!
Also, you do not have to be a U.S citizen to vote.
Thanks, and please do repost... :)

October 26th, 2009

 We need to get BACK to 350, asap.  Learn about it here.
 We Are Facing Utter Worldwide Climate Disaster Unless We Act 

Imagine a gigantic pot of water on a stove, and then imagine that you 
turn up the heat. Does the water boil instantly? Of course not, it 
takes time for the heat to build up. But unless the heat is turned 
down, it inevitably will. 

And that is what we are doing to our planet right now ... for real. 
Just because it does not make headlines every day, does not mean that 
the global warming crisis has gone away. Climate change deniers may 
grasp at the smoke of a possible short term cooling trend. But carbon 
dioxide levels in the atmosphere CONTINUE to increase exponentially, 
with certain irreversible planetary climate disaster unavoidable 
within decades, UNLESS we take strong and decisive action 
immediately. 

Today, October 24, 2009, has been christened "International Day of 
Climate Action" by thousands of advocacy groups around the world 
working to raise awareness of the urgency for profound and rational 
policy change before it is too late. But the weak emissions trading 
schemes previously considered would just LICENSE existing atmospheric 
polluters without achieving real carbon dioxide level reductions. The 
United States must show the leadership to be ready to make a serious 
agreement at the climate summit in Copenhagen in December to save us 
all. 

Reduce CO2 Action Page: http://www.peaceteam.net/action/pnum1015.php 

Please note we did not just say we need to reduce emissions, we need 
to reduce the LEVEL of CO2 in our atmosphere back down to 350 parts 
per million, where it was about 20 years ago. It's at 387 right now, 
and if you look at a graph of the last hundred years it looks like an 
exponential curve. On any longer time scale it looks like a hockey 
stick. 

The best and most knowledgeable scientific minds warn us that unless 
we REVERSE the current overshoot back down to 350 ppm, the climate of 
the planet earth will change beyond recognition with the most dire 
PERMANENT consequences. And that is why we have created a new cap, 
the "350 ppm ... or catastrophe" cap, in practical light khaki for 
casual everyday wear, that we can use to raise awareness, and to 
stimulate discussion of the critical 350 ppm threshold number. And 
you can get one for a contribution of any amount from this page. 

350 ppm Awareness Cap: http://www.peaceteam.net/all_gifts.php 

Or just request one from the form after you submit the action page 
calling for strong action to reduce global carbon dioxide levels. 

In the past decade we have seen collapse of massive ice shelves that 
had been there since the dawn of recorded history. The polar ice cap 
melting has reached such crisis proportions that we are told the 
Arctic Ocean will be ice free within another decade or so. Yet still 
there are those who will not admit that which is no longer even 
debatable, until a category 6 hurricane rolls up on their own front 
porch. But of course by then it will be too late forever. 

Global climate catastrophe means trillions of dollars of coastal city 
infrastructure underwater, tens of millions of people starving and 
displaced, forces leading to world war on a scale previously 
unimaginable. This is the ultimate test of human wisdom and political 
courage. Will we take the action that must be taken, or will 
civilization itself perish? 

Reduce CO2 Action Page: http://www.peaceteam.net/action/pnum1015.php 

So please submit the action page. Congress must act now to empower 
President Obama to be a meaningful participant in the Copenhagen 
climate summit. Get one of the "350 ppm" caps if you can afford a 
donation of any amount. But whatever you do, talk about this issue 
with your friends and family, because if there was ever an issue that 
required resolute action, this is it. 

And here is the one click Facebook page for this action, if you are 
already active over there. 

Reduce CO2 Action: 
http://apps.facebook.com/fb_voices/action.php?qnum=pnum1015 

And the Twitter reply to send, to send this message to all your 
members of Congress that way, is 

@cxs #p1015 

Please take action NOW, so we can win all victories that are supposed 
to be ours, and forward this alert as widely as possible. 

If you would like to get alerts like these, you can do so at 
http://www.peaceteam.net/in.htm 

Or if you want to cease receiving our messages, just use the function 
at http://www.peaceteam.net/out.htm 

August 10th, 2009

Back to super-hot.

China June power output rises 5.2 pct
``[June]'s electricity production was at 310.009 billion kilowatt-hours (kWh)''

China's power generation up 4.2% in July
``China generated 348.5 billion kilowatts of electricity in July, up 4.21 percent year-on-year,''

Can't wait for the economy to crash them again and allow mild weather.

July 6th, 2009

If...

Add to Memories Tell a Friend
JCTM
China's metals ploy was quick to rust ``Metals expert Michael Komesaroff says China has 6 million tonnes of installed but idled capacity ready to fire up if and when prices revive.''
What is the CO2 subtractive value of that?

June 9th, 2009

IATA: Airline industry loss projected at more than US$4.7b ``“We (airlines) represent 2% of the carbon dioxide emission but we will take it seriously. We expect our emission this year to fall by 7% with less traveling and implementation of effective measures,” he said.''

Remember that 7% negative growth cuts a quantity in half in ten years.

June 6th, 2009

Landfills Hurting As Consumers Repair and Reuse << “ You can look at waste and see what the economy is doing,” said Tom Houck, manager at the Defiance County Landfill in northwest Ohio. He’s watched the amount of trash arriving at the landfill plunge 30 percent in the past year. >>

Landfill breaks new ground with trash-to-fuel process << SWACO, using technology developed in Cleveland and manufactured in Dublin, converts the methane gas naturally emitted by the landfill into fuel able to power advanced energy vehicles, said Ron Mills, executive director of SWACO. >>

Will Landfill Light up Lives? Proposal would put solar panel field near JFK in Rockaways << Local civic leaders have asked the Long Island Power Authority to install a solar panel field at the 118-acre Edgemere landfill along Jamaica Bay near Kennedy Airport — with waterfront access to park users. >>

June 4th, 2009



It's enough to make me want to visit again. Just to see a gigantic street with no cars in a city in the US--an enormous outdoor room.

Pedestrians are big part of Broadway's new outdoor show

<< By Martha T. Moore
USA Today
May 28, 2009

NEW YORK — The new show in town isn't on Broadway. It is Broadway.

Five blocks of the thoroughfare running through Times Square are now closed to traffic, creating a pedestrian plaza where locals and tourists can lounge in lawn chairs and take in the spectacle — or join it.

There are tourists snapping photos of Times Square's neon canyon. There are New Yorkers taking a load off. There are couples from the suburbs having a snack before heading to a theater matinee.

And there are the Times Square regulars: a Peruvian pipe ensemble and the Naked Cowboy, a longtime street performer who wears cowboy boots, hat and a pair of white briefs.

"It's wonderful to see these streets inhabited by people instead of traffic," Marlene Cartaina said Wednesday.

... skip ...

The street closing, which began Sunday and will continue until at least the end of the year, is part of a city plan to untangle traffic jams.

... skip ...

The zone is also intended to give elbow room to the 350,000 people who throng the area daily.

... snip ... >>

Video Links:

http://www.youtube.com/watch?v=G9_s3u4jtGU
http://www.youtube.com/watch?v=Jr3IVjAuJZg
http://www.youtube.com/watch?v=7DZNuhdli0s
http://www.youtube.com/watch?v=z7IoDY8LKBI
U.S. energy CO2 output drops record 2.8 pct
<< Reporting by Timothy Gardner and Tom Doggett; Editing by Walter Bagley
Reuters
Wed May 20, 2009

U.S. emissions of the main greenhouse gas -- carbon dioxide -- from energy sources, such as gasoline, diesel and coal, fell a record 2.8 percent last year as the recession hit consumer demand for fuel, the government said on Wednesday.

Energy-related emissions of carbon dioxide in 2008 fell 165 million tonnes from the previous year to 5,802 million tonnes, said the Energy Information Administration, the statistics branch of the Department of Energy. Total U.S. energy consumption dropped 2.2 percent during the year, it said.

Even with the recession-related drop, the United States remains by far the largest greenhouse gas polluter on a per capita basis and the largest emitter save China.

... snip ... >>

Ah so, China down too.

China power output down 3.9 pct in early May
<< Reporting by Eadie Chen and Tom Miles; Editing by Jacqueline Wong
Reuters
Mon May 25, 2009

BEIJING, May 25 (Reuters) - The decline in China's power output accelerated in the first 10 days of May to 3.9 percent from a year earlier, the influential Caijing Magazine reported on Monday ...

... snip ... >>

China May power output down 3.54 pct on year
<< Reporting by Eadie Chen and Tom Miles; Editing Jacqueline Wong
Reuters
Wed Jun 3, 2009

BEIJING, June 3 (Reuters) - China's power production in May fell 3.54 percent from a year earlier, flat from April's annual decline of 3.55 percent, the official Xinhua news agency reported on Wednesday.

... skip ...

China's power consumption was about 4 percent lower in the first five months of this year than in the corresponding months of 2008, Zhang Guobao, head of the National Energy Administration, told a news conference on Monday.

... snip ... >>

June 2nd, 2009

Withdrawal of Old Air-conditioners (in Greece)

<< Within the Development Ministry policy to conserve energy competent Minister Kostis Hatzidakis announced today that the government would subsidize 35% of the cost for the purchase of energy saver air-conditioner with parallel withdrawal of old ones.

...skip ...

The total cost of the program, which includes all parts of the country, mounts to 15 million euros and refers to the replacement of old household air-conditioners. It is believed that up to 60.000 old air-conditioners will be replaced, interpreted in an annual conservation of 20 gigawatts and reduction of 20.000 tonnes in gas emissions.

... snip ... >>

May 20th, 2009

http://www.gopetition.com/petitions/save-teghut-forest.html


The Russian Bank VTB is Planning to fund the disastrous project

of mine exploitation in TeghutArmenia

 

 

The Armenian Copper Program (ACP) company, which is going to exploit the mine at Teghut, is registered in Lichtenstein, and is part of the “Vallex Group”, which already has turned Alaverdi (in North Armenia) into a poisonous desert town.  This company undermines our national security and is an untrustworthy partner for our country. 

 

The exploitation of the Teghut mine will have an immense negative effect on nature, life and health of the people of Armenia, as well as on the prospect of sustainable development for the country.  The exploitation of this mine cannot be justified for any economic, social or environmental reasons.  Exploitation of the Teghut mine means:

  1. consuming the remaining copper and molybdenum resources of our country, leaving nothing to future generations (we are already depleting our biggest molybdenum mine in Kajaran,South Armenia);
  2. extracting only the copper and the molybdenum out of the rich mineral mixture available in the ground, while all other metals will be accumulating in the tailings dump as waste.
  3. the mine will be exploited as an open pit, which means, up to 500 million cubic meters of waste rock and tailings will be generated, destroying thousands of hectares of forests, pastures and orchards, destroying the water regime of the region, polluting the streams and the rivers, burying local streams under waste rock and releasing hundreds of tons a year of dustparticles into the air.
  4. Construction of a tailings dump with a volume of about 175 million cubic meters, which will be the largest for Armenia and will have an immediate effect on Debed river, which is already polluted heavily with metals and chemical reagents.
  5. No opportunities for agricultural development, which means disappearance of hundreds of traditional, environmentally clean jobs, and replacement of these jobs with low-paid, mine laborer jobs in a hazardous and toxic environment.

Your voice is extremely important
http://www.gopetition.com/petitions/save-teghut-forest.html

May 17th, 2009

Bad Economy, Good Environment: Slump Helps U.S. Cut Emissions

<< By Keith Johnson / April 6, 2009 / WSJ

Stephen Power reports:

The economic downturn may be complicating President Obama’s hopes of passing climate change legislation, but it appears to be doing wonders for efforts to cut U.S. greenhouse-gas emissions.

A report issued Monday by the Washington-based Environmental Integrity Project says that because of the recent economic slowdown and milder-than-usual weather, carbon dioxide emissions from U.S. power plants dropped 3.1 percent in 2008, a departure from the recent trends in power plant carbon dioxide emissions, which have risen 0.9 percent since 2003, and 4.5 percent since 1998, according to data from the Environmental Protection Agency.

... snip ... >>




The summary of the report itself:

The Calm Before The Storm?

<< Due in part to the recent economic slowdown and milder-than-usual weather, carbon dioxide (CO2) emissions from U.S. power plants dropped approximately 3 percent in 2008, tempering a steady increasing trend in the preceding years, according to a new report from the Environmental Integrity Project (EIP). EIP officials cautioned that the one-year dip is a departure from the recent trends in power plant carbon dioxide emissions, which have risen nearly 1 percent since 2003, and 4.7 percent since 1998, according to data from the U.S. Environmental Protection Agency (EPA). Despite the slight overall national improvement in CO2 emissions, six states had increases in power plant emissions of 1 million tons or more from 2007 to 2008: Oklahoma (3.1 million); Iowa (1.8 million); Texas (1.7 million); Nebraska (1.3 million); Illinois (1.1 million) and Washington (1.1 million). >>

HA! "cautioned that the one-year dip is a departure from the recent trends"

ZOMG! how funny. Those are the recent trends my dear. The economy has only recently started to tank.

"Oh but the economy will recover and reverse all of this..." Right, sure.

The entire report as PDF:

THE CALM BEFORE THE STORM? -- EPA Data Shows Greenhouse Gas Emissions Down Slightly, But we expect the impossible to happen i.e. economy recovery despite trends like this:



and that will reverse the downturn in emissions that we are now begrudgingly forced to admit are real.

May 15th, 2009

China power generation falls record amount, keeping climate hope alive

``... greenhouse gas emissions in the 4th quarter of 2008 will probably be significantly below the year-ago level.''




New report shows global emissions likely to fall

<< The Paris-based International Energy Agency (IEA) reported today that they expect global oil demand to fall 2.6 million barrels per day (Mbd) in 2009, .24 Mbd lower than their April forecast. As I wrote last month, falling oil consumption can lead to lower overall global greenhouse gas emissions. And IEA’s prediction of even lower oil demand leads me to believe a 2009 emissions drop is now very likely. >>

May 10th, 2009

World environment day is coming up and all across australia landcare australia's campaign is " Your Planet Needs You"  ...
basically trying to spread the word that everyone can volunteer whatever skills they have, and if a opportunity in their local area comes up they will be notified. Its from sewing to running to diving to designing and hosting a bbq.

other ways you can help:
1. Wear Blue on Friday June 5
2. Volunteer a skill on the site www.yourplanetneedsyou.com.au

For everyone registered to take part in this campaign, Spicers Paper donates $2 to the landcare and Coastcare cause.

What other World Environment Day things are you guys doing?

April 4th, 2009

I've been reading a lot of stuff online about how scientists who have been surveying sub-Arctic Siberia have been seeing permafrost melting in standing lakes out of which the previously frozen methane is visibly bubbling up. These thawing methane-deposits are the big thing that many scientists and climatologists think will kick climate-change into overdrive. And if global temperatures rise an average of four degrees Celsius, then, at least according to my understanding, Wisconsin where I live, in addition to the other northernmost US states, would be the most southerly reach of the area of North America that could be inhabited by humans. On the other hand, Alaska and the northern territories of Canada would become much more hospitable than they currently are.

http://www.reuters.com/article/environmentNews/idUSTRE5326HO20090403?feedType=RSS&feedName=environmentNews

March 26th, 2009

Downturn 'could halve carbon emissions'

<< FRANK McDONALD, Environment Editor, in Copenhagen
Irish Times
Friday, March 13, 2009

CLIMATE CONFERENCE: THE CURRENT economic downturn could result in carbon emissions worldwide falling by as much as 40 to 50 per cent if the slump persists for several years, according to Cambridge University economist Dr Terry Barker.

Dr Barker, who is director of the Cambridge Centre for Climate Change Research, said the Great Depression in the 1930s had reduced emissions by 35 per cent globally because so many factories had closed down, particularly in the United States.

“The depression could be worse this time as a result of globalisation. Emissions in the US fell by 3 per cent last year and could fall by 10 to 20 per cent this year because the economy is dropping like a stone with up to 600,000 a month becoming unemployed.”

Dr Barker said he was “very pessimistic about how long it might last”, having started in earnest on September 15th, 2008, “when the world economy fell off a cliff”.

Since then, it had “come down very fast” and would take quite a long time to recover, in his view. “Early indications are that electricity production is falling or collapsing,” he said.

“Although we are not yet confident in the modelling, carbon emissions could fall by 40 to 50 per cent in a worst case scenario, but would come right back up again when the economy recovers.

... snip ... >>
But what if things got worse economically? Could the 40 - 50% be low?
A poor strategy for halting climate change by Ryan Avent for Grist
<< slow climate change if you will, but expect economic collapse to result. >>
That is Avent's take on Owen's comment:
Economy vs. Environment by David Owen for the New Yorker
<< ... So far, the most effective way for a Kyoto signatory to cut its carbon output has been to suffer a well-timed industrial implosion, as Russia did after the collapse of the Soviet Union, in 1991. The Kyoto benchmark year is 1990, when the smokestacks of the Soviet military-industrial complex were still blackening the skies, so when Vladimir Putin ratified the protocol, in 2004, Russia was already certain to meet its goal for 2012. The countries with the best emissions-reduction records--Ukraine, Latvia, Estonia, Lithuania, Bulgaria, Romania, Hungary, Slovakia, Poland, and the Czech Republic--were all parts of the Soviet empire and therefore look good for the same reason ...>>
So a comment about how the track record of environmental change demonstrates that only economic collapse has succeeded in bringing about actual improvements is somehow taken by Avent to mean that environmental improvements result in economic collapse.

Ryan, Ryan, Ryan--when will it dawn on you that economic collapse results in environmental improvements, not the other way around?

March 25th, 2009

This thread is about what's going right with the recession.

One day it will become common knowledge that Global Warming was stopped by Peak Oil. As for now please stand in awe at my willingness to be so contrary as to post endless news articles about emissions targets being met by and only by economic collapse and sudden drops in the average temperature of the Earth that correspond to economic-induced reductions of greenhouse gases.

Feel free to post about how this is all wrong while it unfolds further and further into being. Your words do not have an effect on the truth and the truth is becoming more and more evident.

Just because a concept like unstoppable global warming is embraced by a large number of people does not cause it to change from a falsehood to a reality. Remember when the world was largely thought to be flat it wasn't flat. Now I don't say that global warming is untrue, just that it's misunderstood to be unstoppable and that the evidence is leaking in that cutting back on the greenhouse gases due to an economic crash caused by Peak Oil will bring back cooler, wetter conditions exactly the opposite of all the efforts put forth by environmentalists when they campaigned for the Earth but didn't make a dent in the issues they assailed.

Recession Helping Produce Less Landfill Waste
<< Tom Henkenius
Channel 2 News

March 23, 2009

On trash day, most of us have two choices: trash or recycle.

Waste Management reports a 35% decrease in the amount of trash they're taking in at the Lockwood landfill. They say, since we're not buying as much, we're not throwing as much away.

If the trend continues, they say the lifespan of the dump will increase. And considering few of us would want a dump near our homes, that's certainly a good thing.

Beyond throwing out less, there is another way to lengthen the life of the dump - recycling. It's a trend spokesman Justin Caporusso says is growing. "I think the economy and the way people are changing their purchasing habits it's actually going to help recycling because they're going to be making more conscious decisions when it comes to what they're throwing away and what they're purchasing."

And because of the reduction in the amount of trash, Waste Management's reducing the operating hours at the Lockwood dump. Beginning on Saturday, April 4th, they'll only be open on Saturdays from 7am-noon. Weekday hours won't change. >>




Russian coal production plummets 21% in February - Rosstat
<< Interfax quoted the Federal State Statistics Service said Russian coal production plummeted 20.8% to 22.1 million tonnes in February 2009 compared to February 2008.

Bituminous coal production fell 17.4% to 16.1 million tonnes in February, with open cast mines producing 8.9 million tonnes of this, down 19.7%, and deep mines producing 7.2 million tonnes, down 14.5%. Lignite coal production fell 28.6% to 6 million tonnes. Coking coal production fell 29.9% to 3.8 million tonnes.

Coal production also fell compared to the previous month - by 6.5% with open cast mines reducing output by 1% and deep mines by 7.6%.

Lignite coal production fell 12.5% in February compared to January, while coking coal output declined 15.9%.

Coal production fell 19.3% over the first two months of the year compared to the same period of 2008. Bituminous coal production fell 16.6% with open mine output declining 20.5% and deep mine production falling 11.4%. Lignite coal production fell 5.6% in the two months and coking coal output plunged 37.8%.

(Sourced from Interfax) >>




EU aims to release 2008 emissions data on April 1
<< Carbon market analysts expect 2008 emissions to have dropped to around 2.10 billion tonnes of carbon dioxide, down from 2.17 billion in 2007. >>




Economy vs. Environment
<< by David Owen for The New Yorker Mar 25 2009

... skip ...

So far, the most effective way for a Kyoto signatory to cut its carbon output has been to suffer a well-timed industrial implosion, as Russia did after the collapse of the Soviet Union, in 1991. The Kyoto benchmark year is 1990, when the smokestacks of the Soviet military-industrial complex were still blackening the skies, so when Vladimir Putin ratified the protocol, in 2004, Russia was already certain to meet its goal for 2012. The countries with the best emissions-reduction records—Ukraine, Latvia, Estonia, Lithuania, Bulgaria, Romania, Hungary, Slovakia, Poland, and the Czech Republic—were all parts of the Soviet empire and therefore look good for the same reason.

The United States didn’t ratify the Kyoto Protocol, but Canada did, and its experience is suggestive because its economy and per-capita oil consumption are similar to ours. Its Kyoto target is a six-per-cent reduction from 1990 levels. By 2006, however, despite the expenditure of billions of dollars on climate initiatives, its greenhouse-gas output had increased to a hundred and twenty-two per cent of the goal, and the environment minister described the Kyoto target as “impossible.”

The explanation for Canada’s difficulties isn’t complicated: the world’s principal source of man-made greenhouse gases has always been prosperity. The recession makes that relationship easy to see: shuttered factories don’t spew carbon dioxide; the unemployed drive fewer miles and turn down their furnaces, air-conditioners, and swimming-pool heaters; struggling corporations and families cut back on air travel; even af-fluent people buy less throwaway junk. Gasoline consumption in the United States fell almost six per cent in 2008. That was the result not of a sudden greening of the American consciousness but of the rapid rise in the price of oil during the first half of the year, followed by the full efflorescence of the current economic mess.

... skip ...

One beneficial consequence of the ongoing global economic crisis is that it has put a little time back on the carbon clock. Because the climate damage done by greenhouse gases is cumulative, the emissions decrease attributable to the recession has given the world a bit more room to devise a plan that might actually work.

... snip ... >>




Don't use factory closings to reach target: watchdog
<< In a special report released yesterday, Gord Miller pointed out that Ontario's Climate Change Action Plan doesn't take into account that the economic downturn, if it continues, could enable the province to meet its emission-reduction targets without implementing any environmental strategies at all. >>




2008 temperature: Coolest since 2000, but still 9th-warmest on record
<< NASA scientists reported today that the global average surface temperature in 2008 was the coldest since 2000, but was still well above the long-term average, coming in at ninth-warmest since measurements began in 1880. This followed another report from the National Climatic Data Center that said 2008 was the eighth-warmest year on record. The two organizations analyze data sets slightly differently, which explains the disparity. >>




So are NASA and NOAA the ones who speak the truth when they talk about unstoppable global warming while at the same time they are liars when admit the world is getting cooler instead?

Do rising greenhouse gases make the world warmer but falling greenhouse gases fail to make the world cooler?

March 21st, 2009

I heard something the other day which gave me pause, but can't find reference to it now. Blast.

Here's the concept: The Mayan Civilization grew rapidly from the 5th century A.D. From Jarod Diamond's Collapse, focusing on just one section of the sprawling empire:

As judged by numbers of house sites, population growth in the Copán Valley rose steeply from the 5th century up to a peak estimated at around 27,000 people at A.D. 750-900. Construction of royal monuments glorifying kings was especially massive between A.D. 650 and 750. After A.D. 700, nobles other than kings also got into the act and began erecting their own palaces . . . .

. . . the last that we hear from any Copán king is A.D. 822. . . the royal palace was burned around A.D. 850. However, (various pieces of evidence) suggest that some nobles managed to carry on with their lifestyle after the king's downfall, until around A.D. 975.

. . . The estimated population in the year A.D. 950 was still around 15,000, or 54% of the peak population of 27,000. That population continued to dwindle, until there are no more signs of anyone in the Copán Valley by around A.D. 1250. The reappearance of pollen from forest trees thereafter provides independent evidence that the valley became virtually empty of people, and that the forests could at last begin to recover.

(Diamond, Collapse, Penguin Books, 2005, pp. 168-170, emphasis mine.)


I'll now suggest that rainforests are better able to sequester carbon that previously thought, especially when sparsely occupied, and that the forests would have, no doubt, retaken the former bustling metropolises and supporting farmland the shrinking number of Maya would abandon.

With me so far? Okay. Now let's consider that carbon gases take time, once released from a felled tree, to affect climate. Isn't it weird how the growth and peak of Mayan civilization preceded by one or two hundred years the Medieval Warm Period, a warm period from roughly 800-1300?

It gets more interesting once we consider that even more time would be needed for a forest retaking its former cultivated land to reabsorb those carbon gases released hundreds of years earlier. Once re-sequestered in the forest, though, whole weather patterns would be affected. Here's a few more quotes from Collapse:

In the U.S. Southwest . . . cultures that underwent regional collapses, drastic reorganizations, or abandonments at different locations and different times include Mibres around A.D. 1130; Chaco Canyon, North Black Mesa, and the Virgin Anasazi in the middle or late 12th century; around 1300, Mesa Verde and the Kayenta Anasazi; Mogollon around 1400; and possibly as late as the 15th century, Hohokam. . . . (Ibid, p. 137.)

Between A.D. 800 and 1300, ice cores tell us that the climate in Greenland was relatively mild, similar to Greenland's weather today or even slightly warmer. Thus, the (Viking) Norse reached Greenland during a period good for growing hay and pasturing animals. . . . Around 1300, though, the climate in the North Atlantic began to get cooler and more variable from year to year, ushering in a cold period termed the Little Ice Age that lasted into the 1800s. By around 1420, the Little Ice Age was in full swing, and the increased summer drift ice between Greenland, Iceland, and Norway ended ship communication between the Greenland Norse and the outside world. Those cold conditions . . . were bad news for the Norse, who depended on growing hay. (The) onset of the Little Ice Age was a factor behind the demise of the Greenland Norse. (Ibid, pp. 219-220.)(All emphasis mine.)


Interesting, eh? Purely speculative, but interesting nonetheless.
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