12 April 2016, Carbon Brief, In-depth: Experts assess the feasibility of ‘negative emissions’. To limit climate change to “well below 2C”, as nations agreed to do in Paris last December, modelling shows it is likely that removing carbon dioxide emissions from the atmosphere later on this century will be necessary. Scientists have imagined a range of “negative emissions” technologies, or NETs, that could do just that, as explained by Carbon Brief yesterday. But are any of them realistic in practice? Carbon Brief reached out to a number of scientists, policy experts and campaigners who have studied both the necessity and feasibility of negative emissions. We sent them the following identical email: The Paris Agreement calls for “holding the increase in the global average temperature to well below 2C above pre-industrial levels and to pursue efforts to limit the temperature increase to 1.5C above pre-industrial levels”. However, as the IPCC AR5 report showed, the majority of modelling to date assumes a significant global-scale deployment of negative emissions technologies in the second half of this century, if such temperature limits are to be achieved.
These are the responses we received, first as sample quotes, then, below, in full: Read More here