Doubt over the Use of Biochar to Alleviate Climate Change

In the first study of its kind, research has cast significant doubt over the use of biochar to alleviate climate change.  Biochar is produced when wood is combusted at high temperatures to make bio-oil and has been proposed as a method of geoengineering. When buried in the soil, this carbon rich substance could potentially lock-up carbon and reduced greenhouse gas emissions.  The global potential of biochar is considered to be large, with up to 12 percent of emissions reduced by biochar soil application.

Doubt over the Use of Biochar to Alleviate Climate Change