References
"“1491”"., by Charles Mann.
"Eprida Home Page". Retrieved on 2006-05-08.
"Programme Summary: The Secret of El Dorado". BBC Two, 9 pm, Thursday 19 December 2005. Retrieved on 2008-07-10.
"Terra Preta". Hypography discussion forum. Retrieved on 2006-05-08.
"Putting the carbon back: Black is the new green" (PDF). Nature. Retrieved on 2008-07-10.
"Terra Preta Discussion List". Retrieved on 2008-07-10.
Bechtold,G.: "Research work, homepage and thesis about Terra Preta with maps of TP sites and TP
field work in Belterra, Pará".
Michael Tennesen (2007). "Black Gold of the Amazon", in Discover Magazine Vol. 28 No. 04, April 2007. Last accessed March 2007.
"Terra Preta Home Page". Retrieved on 2007-04-20.
David Haywood (2007). "Could the Mysterious Agricultural Techniques of an Ancient Amazonian Civilization Make New Zealand Farming More Competitive?", on Public Address Radio 5 May 2007.
Last accessed May 2007.
Casselman, Anne (May 2007). ""Special Report: Inspired by Ancient Amazonians, a Plan to Convert
Trash into Environmental Treasure"". Scientific American. Retrieved on 2008-07-10.
Manuel Arroyo-Kalin (2007) Geoarchaeological approaches to the study of Terras Pretas.
http://www.arch.cam.ac.uk/~maa27/ External links
"Modern Terra Preta Creation".
Salleh, Anna (2007-06-08). "Charred farm waste could gobble up carbon". News in Science.
Australian Broadcasting Corporation. Retrieved on 2008-07-10. ABC Science Online.
Horstman, Mark (2007-09-23). "Agrichar – A solution to global warming?",
ABC TV Science: Catalyst, Australian Broadcasting Corporation.
Retrieved on 10 July 2008.
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