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Marine research in the Brazilian rainforest
Date:8/14/2012

e soil of the rain forest gave the highest yield of carbon compounds in leaching experiments. More and more it became obvious that the sugar cane plantations were not the source, as also high concentrations of charred carbons were detected upstream of the river where only limited numbers of plantation were present.

"There are current discussions in the scientific community about using charred carbon to sequester carbon and thereby removing it from the active global carbon cycle. Our data clearly show that this is not a sustainable procedure, as sooner or later this carbon ends up in the oceans and alters the ecosystem. And we do not know anything about the consequences", Dittmar sums up his concerns. "The soluble fraction of charred carbon is extremely stable in the environment and withstands microbial activities. Therefore, we can trace it in the world's oceans, even in remote places of the deep sea. Our study suggests that this stable fraction of charred carbon in the deep sea will increase due to the increase of anthropogenic activities. The consequences on the marine microorganisms and the global carbon cycle are unknown."


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Contact: Dr. Thorsten Dittmar
tdittmar@mpi-bremen.de
49-441-798-3602
Max-Planck-Gesellschaft
Source:Eurekalert  

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