Biochar, re-afforest, renewables

Thank you for your important information on BIOCHAR, Erich.  
 
Top US climate scientist Dr James Hansen (Head, NASA Goddard Institute for Space Studies, GISS, New York) says that we have gone too far: "The evidence indicates we've aimed too high -- that the safe upper limit for atmospheric CO2 is no more than 350 ppm", and wants a “negative CO2 emissions” policy of cessation of CO2 pollution and reducing atmospheric CO2 pollution (e.g. by use of renewable and geothermal energy, re-afforestation, returning carbon as BIOCHAR to soils) (for recent articles about or by Dr Hansen and his colleagues see: Dr Hansen on less than 350ppm atmospheric CO2 & use of BIOCHAR ; link ; Dr Hansen's letter to Oz PM Rudd ) .

http://mwcnews.net/gideon-polya

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