sentences:  The sustainable technical potential for net negative emissions with BECCS has been estimated to 10 Gt of equivalent annually, with an economic potential of up to 3.5 Gt of equivalent annually at a cost of less than 50 €/tonne, and up to 3.9 Gt of equivalent annually at a cost of less than 100 €/tonne.Imperial College London, the UK Met Office Hadley Centre for Climate Prediction and Research, the Tyndall Centre for Climate Change Research, the Walker Institute for Climate System Research, and the Grantham Institute for Climate Change issued a joint report on carbon dioxide removal technologies as part of the "AVOID