Lackner, K. S.; et al. (2012): The urgency of the development of CO2 capture from ambient air
Lackner, K. S.; Brennan, S.; Matter, J. M.; Park, A.-H A.; Wright, A.; van der Zwaan, B. (2012): The urgency of the development of CO2 capture from ambient air. In: Proceedings of the National Academy of Sciences 109 (33), S. 13156–13162. DOI[nbsp]10.1073/pnas.1108765109
Paper discussing direct air capture, CCS and negative emissions.