geoengineering explained: the benefits and challenges of bioenergy with carbon capture and sequestration

The production of bioenergy with carbon capture and sequestration is considered a form of carbon dioxide removal (CDR). The process begins by growing biomass, burning it to create energy and finally capturing and sequestering the carbon dioxide created in the process. Negative CO2 emissions are generated by combining bio-energy production [biomass fuel power stations, pulp mills and biofuel plants] with carbon capture and storage technology, allowing carbon dioxide to be captured from the atmosphere and remitted back underground. 

see also:

Question: What is geoengineering?

Albedo Enhancement
Space Reflectors
Stratospheric Aerosols

Afforestation
Ambient Air Capture
Biochar
Bioenergy Capture and Sequestration
Ocean Fertilization
Enhanced Weathering
Ocean Alkalinity Enhancement

sources:

BECCS – Bio-Energy with Carbon Capture and Storage. (2010). Retrieved from www.thenaturalstep.org
International Energy Agency. (2011). Combining Bioenergy with CSS. Retrieved from iea.org: http://www.iea.org/publications/freepublications/publication/bioenergy_ccs.pdf