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Saturday, October 6, 2018

El Dorado, Biochar and Conquistador Orellano

“When the Conquistador Francisco de Orellana entered the remote Rio Negro region of the Amazon basin in 1542, he was searching for one thing -- a city of gold. Though he never found gold, he did find what is now believed to be the lost city of El Dorado (and something perhaps even more valuable for us today).
Wide causeways running in perfectly straight lines for lengths of 50 miles or more across huge engineered agricultural landscapes, connecting cities with populations in the hundreds of thousands. This is what Orellana reported upon his return to Spain. But subsequent explorers could never find the legendary agrarian metropolis, and most dismissed his claims as fantasy.”

[The reason that they couldn’t find the agrarian civilization is that Orellana’s troupe had exposed these people to the same diseases that had decimated the other pre-Colombian civilizations. In short, they were mostly dead when later explorers came looking for them. I wonder if that might have been a more merciful fate than the global extinction that we may be facing. We can see what’s coming from a long ways off and are unable and/or unwilling to do anything about it. Facing the possibility of a Sixth Extinction and not thwarting it is especially cruel and disheartening.]

“Even modern anthropologists dismissed the El Dorado legend for one good reason -- soil fertility, or lack thereof. The Amazon basis is notorious for its highly eroded and infertile soils, and until very recently it was impossible to consider that this soil could support such a large and extensive population. But the Lost City also contained a lost secret. A discovery that proved Orellana right”- Biochar aka Terra Preta.
https://www.mnn.com/green-tech/research-innovations/blogs/the-secret-of-el-dorado-revealed

Biochar
https://en.m.wikipedia.org/wiki/Biochar

Terra Preta 
https://en.m.wikipedia.org/wiki/Terra_preta

History of Biochar
http://www.pronatura.org/wp-content/uploads/2012/07/History-of-biochar.pdf

Biochar Sequester CO2
http://www.slate.com/blogs/bad_astronomy/2014/08/20/atmospheric_co2_humans_put_40_billion_tons_into_the_air_annually.html

Amplified Greenhouse Effect Fuels Global Warming Induced Climate Change

Carbon dioxide (CO2) is labeled a greenhouse gas because it absorbs infrared heat radiation (IR) that is emitted from the surface of the Earth. An increase in CO2 and other greenhouse gases yields higher temperatures overall. This results in observable and measurable ‘greenhouse effects’ called global warming because of the climate change induced by mankind’s activities.

Greenhouse Effect:

Global Warming:

Climate Change:

Note: If greenhouse gas levels were too low, we’d have a Snowball Earth:

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