'Terra preta' presentation slideshows

Terra Preta Sanitation full reuse in sanitaton and bio-waste-management

419 views • 41 slides

Who lives in the Amazon?

363 views • 20 slides

Biochar: Climate change solution or threat?

Biochar: Climate change solution or threat?. Biofuelwatch www.biofuelwatch.org.uk 1 st June 2009. What is really known about it's impact on soil carbon and soil fertility? What will the new demand for a global biochar programme mean for climate and people?. Biochar.

297 views • 20 slides

445 views • 15 slides

How did the native Amazon tribes create these remarkably fertile and productive soils?

221 views • 5 slides