http://www.avoid.uk.net/research/bioenergy-with-carbon-capture-and-storage-beccs/

Work Package D: Bioenergy with carbon capture and storage
(BECCS)Feasibility of different levels of negative emissions, focusing on
BECCS. Barriers to deployment of BECCS, and cost implications using expert
elicitation.

Lead researchers:Jason Lowe
Met Office
Naomi Vaughan
Tyndall Centre
Andy Wiltshire
Met Office

Summary

A growing body of research, including that from the first AVOID programme,
has shown that the probability of being able to limit future global warming
to levels such as 1.5°C or 2°C above pre-industrial times is strongly
dependent on the implementation of, so called, negative emissions
technologies. Here, the basic idea is that greenhouse gases, especially
carbon dioxide, might be removed from the atmosphere at a quicker rate
compared to that of natural processes alone. This could allow for a slower
reduction of fossil fuel use whilst still keeping open the options of
meeting ambitious warming limits. Several technologies have been suggested
that could enable enhanced carbon dioxide removal but so far most emphasis
has focussed on the combination of biomass and carbon capture and storage.
This combination has not yet been demonstrated on a large, commercially
viable scale.

What do we already know?We have already estimated how much negative carbon
emissions would be needed in order to meet given temperature limits with a
chosen probability. Essentially the negative emissions buy time, allowing a
later peak in fossil fuel emissions and/or a slower rate of emissions
reduction after the peak. Crude estimates have been made of the capacity
for combined biomass and carbon capture and storage, but these have
typically lacked consideration of key processes and limitations, such as
the amount of available water for biomass crops. Some studies have examined
the joint needs of land for biofuels and land for food production, although
usually in a highly simplified manner. There has been less work to date on
other barriers to negative emissions technologies, including many technical
aspects and societal attitudes.

What will this research achieve?Firstly this work will provide a review of
the recent literature on negative emissions, synthesising existing
knowledge. It will then use expert judgement to provide new and additional
information focused on the barriers to implementation and realistic
scenarios of deployment. The second aspect of our work in AVOID2 will use a
state of the earth system model to examine the maximum capacity for
biofuels, assuming a range of resource limitations and other land use
needs. Until recently earth system models have not had the complexity
needed to perform this type assessment in a credible manner.

What is the policy relevance?This work has a direct impact on determining
the mix of mitigation methods that would need to be used for a given
temperature target. It will also provide useful information on the barriers
that will need to be overcome in order to make implementation of negative
emissions a reality on a large-scale.

Research area description and outputs

D1. Review of negative emissions technology

A significant issue when considering the feasibility of limiting warming to
values such as 2°C is the availability of technology to artificially remove
greenhouse gases from the atmosphere. So far most consideration has been of
combining biofuels with CCS (BECCS) – but even this is very uncertain. This
project will first provide a literature review of current thinking on
greenhouse gas removal (View report D1.a). It will then hold a workshop to
update knowledge on the capacity, deployment rates and side effects of
bio-energy with carbon capture and storage. View report D1.b

D2. The role of BECCS in mitigating climate change

PublicationsSee all publications from this work package

Peer reviewed publicationsAny peer reviewed publications associated with
this research area will appear here.

Research areas

Emission scenarios and climate changeClimate change impactsEconomic risks
of imported impactsRates of decarbonisationBioenergy with carbon capture
and storage (BECCS)Land use, land-use change and forestry (LULUCF)

Publications from this research area

How plausible is a rapid global increase in the deployment of Bioenergy
with Carbon Capture and Storage (BECCS)? Policy Card D1a D1bNovember 20,
2015How can Bioenergy with Carbon Capture and Storage (BECCS) contribute to
meeting 2 degrees? Policy card D2aNovember 20, 2015Reversing climate change
by large scale deployment of carbon-dioxide removal through BECCS
(D2b)November 10, 2015Synthesising existing knowledge on the feasibility of
BECCS: Workshop report (D1.b)September 14, 2015Synthesising existing
knowledge on the feasibility of BECCS (D1a)July 21, 2015

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