To have a >50% chance of limiting warming below 2 °C, most recent scenarios from integrated assessment models (IAMs) require large-scale deployment of negative emissions technologies (NETs). These are technologies that result in the net removal of greenhouse gases from the atmosphere. We quantify potential global impacts of the different NETs on various factors (such as land, greenhouse gas emissions, water, albedo, nutrients and energy) to determine the biophysical limits to, and economic costs of, their widespread application. Resource implications vary between technologies and need to be satisfactorily addressed if NETs are to have a significant role in achieving climate goals. © 2015 Macmillan Publishers Limited.
Senior Research Fellow Wolfgang is an expert on low-carbon energy technology policy with in-depth knowledge of the science and technology of CO2 capture… Wolfgang is an expert on low-carbon energy technology policy with in-depth knowledge of the science and technology of CO2 capture and storage, Prior to joining KAPSARC he was a senior adviser at the International Energy Agency in Paris. Wolfgang also has over 20 years of experience working with Shell International.