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SUMMARY:Climate and Composition Implications of a hydrogen economy - Nicol
 a Warwick (University of Cambridge)
DTSTART:20220125T140000Z
DTEND:20220125T150000Z
UID:TALK168518@talks.cam.ac.uk
CONTACT:104065
DESCRIPTION:Hydrogen forms an important part of the UK’s plan to reach N
 et Zero by 2050\, with potential to be used in heating\, transport and pow
 er generation. A switch from fossil fuel to hydrogen has potential benefit
 s for both climate and air quality\, resulting from reductions in emission
 s of CO2 and other species co-emitted with CO2 including CH4\, CO and NOx 
 (depending on whether H2 is combusted). However\, there are also potential
  disbenefits arising from H2 leakage occurring during its production\, tra
 nsport and storage. Increases in H2 emissions could lead to an increase in
  the lifetime of methane\, an important greenhouse gas\, and changes in st
 ratospheric composition that could influence stratospheric ozone recovery.
  The possible impact of H2 leakage and estimated changes to CH4\, CO and N
 Ox emissions in a global hydrogen economy is explored using a combination 
 of box modelling and simulations using a chemistry-climate model. We also 
 derive a new GWP for H2\, which is first to include the impact of changes 
 in stratospheric composition.
LOCATION:https://us02web.zoom.us/j/85220058971?pwd=ZVVTSHB2bDBadzJTMHZMTUQ
 1eDdZQT09
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