Separation, however, could exacerbate some challenges for the carbon footprint, particularly where the techniques relate to both emissions and negative emissions (such as habitat restoration and BECCS). Avoiding double counts of two different regulations to set targets and monitor progress would require careful thinking and would not be politically trivial. Nevertheless, based on our stakeholder research, we conclude that these disadvantages are more than offset by the potential benefits of a separation approach. The CCC already contains negative emissions in some of its scenarios for the 2050 target. It is now said that these options will be «necessary» by Britain and the world. According to the Intergovernmental Panel on Climate Change (IPCC), CO2 emissions need to peak in the coming decades and then fall sharply so that the world can avoid a 2oC increase. A spike in emissions seems possible considering that the annual increase in carbon pollution stopped between 2014 and 2016, but it is the projected decline that is causing nightmares for climate scientists. Edmonds J, Luckow P, Calvin K et al (2013) Can radiation pressure be limited to 2.6 Wm-2 without negative bioenergy emissions and CO2 capture and storage? Clim Chang 118:29-43. doi.org/10.1007/s10584-012-0678-z However, if negative emissions are less feasible or less effective than expected, stricter emission reductions are needed. Glen Peters, chief researcher at the Norwegian Institute for Climate Research (CICERO), told Carbon Brief: This shortage is considerable. The CCC says that the current policy will, at best, provide only half of the emissions savings required.
Anderson K, Peters G (2016) Problems with negative emissions. Science 354:182-183. doi.org/10.1126/science.aah4567 it also forces them to find a «balance» between emission sources and man-made wells – a goal widely interpreted as roughly equivalent to achieving zero net emissions. Keywords: negative emissions, carbon dioxide reduction, climate protection, BECCS, DACCS Koelbl BS, van den Broek MA, Faaij APC, van Vuuren DP (2014) Uncertainty about the supply of CO2 capture and storage (CCS): an inter-model comparison exercise. Clim Chang 123:461-476. doi.org/10.1007/s10584-013-1050-7 Daggash, H. A., Heuberger, C. F.
and Mac Dowell, N. (2019). The role and value of negative emission technologies in decarbonising the UK`s energy system.