Climate change and biochar

I've recently posted to the NZ biochar interest group (AllBlackEarth) on 3 very interesting video presentations that tie biochar into climate change and other environmental issues. Do check them out if this subject is of interest to you...

• http://soilcarbon.org.nz/dave-montgomery-dirt-the-erosion-of-civilizations/
• http://soilcarbon.org.nz/climate-emergency-countdown/
• http://soilcarbon.org.nz/thomas-rippel-and-his-world-of-sht/