09 Oct '11, 10pm

NASA Earth Observato Fires along the Rio Xingu, Brazil: This astronaut photograph illustrates slash-and-burn

The rainforest of South America, also known as Amazonia, has been undergoing a continual and accelerated conversion process into farmlands (including pasture for livestock) since the early 1960s. This process has typically been achieved by clearing the forest using fire—“slash and burn”—followed by planting of crops. The generally infertile soils of this rainforest—the largest such forest on Earth—make sustainable farming difficult. This drives people to convert more forest into farmland. The area of clearing can be considerable, and since the deforested regions are easily identifiable and measurable from space, the rate of deforestation is likewise easy to track. This astronaut photograph illustrates slash-and-burn forest clearing along the Rio Xingu (Xingu River) in the state of Matto Grasso, Brazil. The photo was taken from the International Space Station, a platform fr...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=71256&s...

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Fires along the Rio Xingu, Brazil: Source: eart...

earthobservatory.nasa.gov 09 Oct '11, 10pm

The rainforest of South America, also known as Amazonia, has been undergoing a continual and accelerated conversion proces...

Fires along the Rio #Xingu, #Brazil [image] - #...

earthobservatory.nasa.gov 09 Oct '11, 10pm

The rainforest of South America, also known as Amazonia, has been undergoing a continual and accelerated conversion proces...

Increibles imagénes satélite de incendios n la ...

earthobservatory.nasa.gov 10 Oct '11, 6am

The rainforest of South America, also known as Amazonia, has been undergoing a continual and accelerated conversion proces...

An excellent round-up of #RioPlus20 news focusi...

switchboard.nrdc.org 08 Oct '11, 9pm

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news.mongabay.com 09 Oct '11, 5pm

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Today's #FF - Twenty years after Rio, @SevernSu...

davidsuzuki.org 14 Oct '11, 4pm

Had world leaders paid more attention to a young Severn Cullis-Suzuki when she spoke at the Earth Summit in Rio de Janeiro...

Discovering America [image] #NASA

earthobservatory.nasa.gov 15 Oct '11, 10pm

For the past week, we have celebrated the discovery and exploration of our planet. Every October, Earth Science Week provi...