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SUMMARY:Bounding global aerosol radiative forcing of climate change - Dr. 
 Nicolas Bellouin\, University of Reading
DTSTART:20191125T140000Z
DTEND:20191125T150000Z
UID:TALK133876@talks.cam.ac.uk
CONTACT:Dr Anja Schmidt
DESCRIPTION:Aerosol radiative forcing plays an important role in the attri
 bution of past climate changes\, estimates of future allowable carbon emis
 sions\, and the assessment of potential geoengineering solutions. Substant
 ial progress made over the past 40 years in observing\, understanding\, an
 d modelling aerosol processes helped quantify aerosol radiative forcing\, 
 but uncertainties remain large.\n\nIn spring 2018\, under the auspices of 
 the World Climate Research Programme's Grand Science Challenge on Clouds\,
  Circulation and Climate Sensitivity\, thirty-six experts gathered to take
  a fresh and comprehensive look at present understanding of aerosol radiat
 ive forcing and identify prospects for progress on some of the most pressi
 ng open questions. The outcome of that meeting is a review paper\, Belloui
 n et al. (2019)\, soon to be published in Reviews of Geophysics.\nThis rev
 iew provides a new range of aerosol radiative forcing over the industrial 
 era based on multiple\, traceable and arguable lines of evidence\, includi
 ng modelling approaches\, theoretical considerations\, and observations. A
  substantial achievement is to focus on lines of evidence rather than a su
 rvey of past results or expert judgement\, and to make the open questions 
 much more specific.\n\nThis talk will present the key messages and argumen
 ts of the review and identify work that show promise for improving the qua
 ntification of aerosol radiative forcing.
LOCATION:Pfizer Lecture Theatre\, Department of Chemistry
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