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Tag: amazon
50,000 km of roads built across Brazilian Amazon in 3 years
2013-10-29 18:41:00| Climate Ark Climate Change & Global Warming Newsfeed
Mongabay: Roads are rapidly expanding across the Brazilian Amazon opening up once remote rainforests to loggers, miners, ranchers, farmers, and land speculators, finds a new study published in the journal Regional Environmental Change. Researchers from Imperial College London and Brazil-based Imazon used maps of existing roads and satellite imagery to track the expansion of the Brazilian Amazon's road network between 2004 and 2007, a period when nearly 70,000 square kilometers of rainforest was felled in...
Tags: years
built
amazon
roads
Extent of Peruvian Amazon lost to illegal goldmines mapped first time
2013-10-29 12:30:00| Climate Ark Climate Change & Global Warming Newsfeed
Guardian: The area affected by illegal gold mining in Peru's south-eastern Amazon region increased by 400% from 1999 to 2012, according to researchers using state-of-the-art mapping technology. Using airborne mapping and high-satellite monitoring, researchers led by the Carnegie Institution for Science also showed that the rate of forest loss in Madre de Dios has tripled since the 2008 global economic crisis, when the international price of gold began to rise to new highs. Until this study, thousands...
Trees of the Amazon rainforest
2013-10-29 08:16:00| Climate Ark Climate Change & Global Warming Newsfeed
Guardian: Almost 400 billion trees belonging to 16,000 different species grow in the Amazon rainforest, according to scientists from the RAINFOR consortium in Peru and the UK, who participated in the recent study in Science. But half the total number of trees are thought to belong to just 227 'hyperdominant' species, among them the rubber tree, the walking palm and the ungurahui tree
Tags: amazon
trees
rainforest
Small Illicit Gold Mines Devour Peruvian Amazon Rainforest
2013-10-29 00:21:00| Climate Ark Climate Change & Global Warming Newsfeed
Environment News Service: The area covered by gold mining in the biologically rich Madre De Dios region in the Peruvian Amazon has quadrupled in the years from 1999 to 2012, finds new research published online today. For the first time, researchers have been able to map the true extent of gold mining by combining information from field surveys with airborne mapping and high-resolution satellite monitoring. The Carnegie Airborne Observatory flies over the Madre De Dios region of Peru.(Photo courtesy Greg Asner, Carnegie...
Huge Network of Road Built in Amazon Rainforest has Untold Environmental Impact
2013-10-28 21:03:00| Climate Ark Climate Change & Global Warming Newsfeed
Nature World: Between 2004 and 2007, more than 50,000 kilometers (31,000 miles) of roads were built in the Brazilian Amazon, contributing to untold deforestation and habitat loss, according to a new study which is the first to measure the number of roads built in a rainforest ecosystem over an extended period of time. Writing in the journal Regional Environmental Change, researchers from Imperial College London also pointed out that the way Amazon road networks develop is still poorly understood and that similar...
Tags: network
road
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impact
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