Gold prices spur six-fold spike in Amazon deforestation

[lostinblue 1,989]

Gold prices spur six-fold spike in Amazon deforestation

April 19, 2011 Deforestation in parts of the Peruvian Amazon has increased six-fold in recent years as small-scale miners, driven by record gold prices, blast and clear more of the lowland rainforest, according to a new Duke University-led study.

The study, published today in the online journal PLoS ONE, combined NASA satellite imagery spanning six years with economic analyses of gold prices and mercury imports to document the forces responsible for deforestation in Peru's biologically diverse Madre de Dios region.

Roughly 7,000 hectares, or about 15,200 acres, of pristine forest and wetlands were cleared at two large mining sites between 2003 and 2009, with a dramatic increase in deforestation occurring in the last three years.

"In addition to these two large sites, there are many scattered, small but expanding areas of mining activity across Madre de Dios that are more difficult to monitor but could develop rapidly like the sites we've tracked over time," says Jennifer Swenson, assistant professor of the practice of geospatial analysis at Duke's Nicholas School of the Environment.

Much of the deforestation visible in the satellite images has been caused by unregulated, artisanal mining by miners who are often among the poorest and most marginalized members of their society.

"These are small-time miners; there is no big 'Goliath' mining company to blame," Swenson says. The miners often lack modern technology, have limited knowledge of mining's environmental or human health effects and rarely have safeguards to limit the release of the mercury they use to process their gold into the air, soil or water.

Artisanal mining has occurred in the region since the time of the Incas, but the recent record-setting rise in gold prices, which now exceed $1,400 an ounce, has shifted its pace into hyperdrive, she says. The mining "is now plainly visible from space," Swenson says. "At the two sites we studied, Guacamayo and Colorado-Puquiri, nearly 5,000 acres were cleared in just three years, between 2006 and 2009, largely outpacing nearby deforestation caused by human settlement."

Land cleared for mining has a different spectral signature on satellite images, allowing Swenson and her team to differentiate it from deforestation caused by farming, road-building or other settlement-related activities.

Most of the gold mined artisanally in Madre de Dios comes from alluvial deposits in the channels and floodplains of Amazon tributaries. Miners blast away river banks and clear floodplain forests to expose potential gold-yielding gravel deposits and use mercury to process the gold ore.

The mercury contaminates local water and soil, and ravages the nervous system of miners and their families, but the risks extend far beyond the local area, Swenson says. Small-scale gold mining is the second-largest source of mercury pollution in the world, behind only the burning of fossil fuels. Mercury from artisanal mines can travel hundreds of miles in the atmosphere or in surface waters eventually settling in sediments and moving up the food chain into fish, fish-eating wildlife and humans.

"Virtually all mercury imported to Peru is used for artisanal gold mining and imports have risen exponentially since 2003, mirroring the rise in gold prices," Swenson says. "Given the rate of recent increases, we project mercury imports will more than double by the end of 2011, to about 500 tons a year."

It's been difficult for Peru's government to monitor and control all artisanal mining within its borders, she says, but another approach, worth considering, may be to be start limiting mercury imports.

Provided by Duke University (news : web)

http://www.physorg.com/news/2011-04-gold-prices-spur-six-fold-spike.html

http://www.atimes.com/atimes/Global_Economy/LK10Dj02.html

"The day following Bernanke's action, the gold price rose $53, closing at a new record. More ominous for the US consumer, oil prices also rose more than $2 to a new post-2008 high. Bernanke's new injection of money may well provide the last surge in liquidity that causes global commodity markets to run altogether out of control. In that case Bernanke's theological disquisitions on whether his target inflation rate should be 2% or 4% will quickly become irrelevant.

Edited May 1, 2011 by lostinblue

[Gary and Alla 3,694]

It is also OK if they mow down the rain forest to grow crops to be turned into ethanol. It saves Polar Bears. It is NOT OK to chop up birds with wind turbines

Get with the program.

[Mr. Big Dog 10,747]

Obama sets Gold prices? I did not know that.

Edited May 1, 2011 by Mr. Big Dog

[Gary and Alla 3,694]

Obama sets Gold prices? I did not know that.

He does not. I scanned all three posts in this thread and found no one that said that. Did I miss something?

[Peikko 1,575]

Amazonian deforestation is a sad business all around. Yes, the indigenous populations need resources but decimating them in an unsustainable way is short sighted in the extreme however inevitable it might be.

[Gary and Alla 3,694]

Amazonian deforestation is a sad business all around. Yes, the indigenous populations need resources but decimating them in an unsustainable way is short sighted in the extreme however inevitable it might be.

An international ban on the use of ethanol as a fuel would help.

[Nina~ 431]

He does not. I scanned all three posts in this thread and found no one that said that. Did I miss something?

Re-read the title.

[Peikko 1,575]

An international ban on the use of ethanol as a fuel would help.

Since when you are in favor of banning anything? I thought you were a believer in a self regulating markets?

However, I do not believe that ethanol is any kind of solution to the problem of finding a cheap, sustainable fuel source to maintain a standard of living that we have become comfortable with in the Western world.

[Mr. Big Dog 10,747]

He does not. I scanned all three posts in this thread and found no one that said that. Did I miss something?

Yep, you missed the thread subtitle apparently.

[Bad_Daddy 2,209]

I'm not sure how Obama plays into all of this. Most all the mining company's are either Australian, Canadian, or South African and last time I checked the Amazon Forest wasn't in the United States. So where's Obama fit into all of this ?

[Gary and Alla 3,694]

Re-read the title.

Oh yeah there it is. "obama controls gold prices" How did I miss that?

Yep, you missed the thread subtitle apparently.

Um, no, I didn't. I did not take it to mean something it does not. Big difference

[Mr. Big Dog 10,747]

Um, no, I didn't. I did not take it to mean something it does not. Big difference.

So what you're saying is that you couldn't put one and one together? Sorry to hear...

[Ban Hammer 13,696]

I'm not sure how Obama plays into all of this. Most all the mining company's are either Australian, Canadian, or South African and last time I checked the Amazon Forest wasn't in the United States. So where's Obama fit into all of this ?

aha! it's booyah's fault!