Events at The University of Manchester
  • University home
  • Events
  • Home
  • Exhibitions
  • Conferences
  • Lectures and seminars
  • Performances
  • Events for prospective students
  • Sustainability events
  • Family events
  • All Events

CO2e- the Zombie Climate Metric

Dates:13 October 2016
Times:16:00 - 17:30
What is it:Seminar
Organiser:Tyndall Manchester
How much:Free
Who is it for:University staff, Adults, Alumni, Current University students, General public, Post 16, Secondary schools
Speaker:Raymond Pierrehumbert
See travel and contact information
Add to your calendar

Other events

  • In category "Seminar"
  • By Tyndall Manchester

Anthropogenic greenhouse gases vary in the two dimensional space of atmospheric lifetime and radiative efficiency, but ever since the IPCC First Assessment Report, various metrics have come into use in a (largely fruitless) attempt to characterize the mix of emitted gases by a single metric, generally phrased in terms of “equivalent CO2” or CO2e. All of these metrics have serious shortcomings, but the flaws of the most widely used metric — CO2e based on Global Warming Potential — are particularly bad and lead to perverse incentives when incorporated in emissions targets, taxes or trading scheme. In particular, the metric severely overestimates the importance of mitigation of short-term climate pollution like methane or HFC.

In this talk, I will go through some case studies illustrating problems with CO2e, and point to better ways of evaluating the climate impact of a mix of gases. I will also discuss the problems arising from the fact that most of the COP21 INDC targets were phrased in terms of CO2e, without further specification as to how the target would be achieved. Generally speaking, so far as climate protection goes the only near term SLCP mitigation that needs to be encouraged are measures of very low or negative cost, but policy vehicles which incentivize such measures without displacing more important CO2 mitigation are very difficult to formulate.

Price: Free

Speaker

Raymond Pierrehumbert

Role: Halley Professor of Physics

Organisation: University of Oxford

Biography: Raymond Pierrehumbert is the Halley Professor of Physics at the University of Oxford, and was previously the Louis Block Professor in the Geophysical Sciences at the University of Chicago. He has current research interests in climate of exoplanets, as well as a variety of global change problems, including the relative importance of CO2 vs short-lived climate pollution mitigation.

Travel and Contact Information

Find event

C21
Pariser Building
Manchester

Contact event

Amrita Sidhu

amrita.sidhu@manchester.ac.uk

Contact us

  • +44 (0) 161 306 6000

Find us

The University of Manchester
Oxford Rd
Manchester
M13 9PL
UK

Connect with the University

  • Facebook page for The University of Manchester
  • X (formerly Twitter) page for The University of Manchester
  • YouTube page for The University of Manchester
  • Instagram page for The University of Manchester
  • TikTok page for The University of Manchester
  • LinkedIn page for The University of Manchester

  • Privacy /
  • Copyright notice /
  • Accessibility /
  • Freedom of information /
  • Charitable status /
  • Royal Charter Number: RC000797
  • Close menu
  • Home
    • Featured events
    • Today's events
    • The Whitworth events
    • Manchester Museum events
    • Jodrell Bank Discovery Centre events
    • Martin Harris Centre events
    • The John Rylands Library events
    • Exhibitions
    • Conferences
    • Lectures and seminars
    • Performances
    • Events for prospective students
    • Sustainability events
    • Family events
    • All events