Yann Robiou du Pont


Yann obtained a Master’s in climate, ocean and atmosphere science (Pierre and Marie Curie University) as well as a Magister in theoretical physics (University of Paris-Sud). He has various research experience in oceanography (Equatorial Atlantic, Arctic, Antarctica), hydrology, cosmology and sea ice rheology at the universities of Pierre and Marie Curie, Harvard, Berkeley, Oxford, Copenhagen and McGill, respectively. After a year of field research in Benin and a sailing journey across the Arctic North-West Passage, Yann enrolled in the College and modelled national greenhouse gases emissions scenarios following a combination of different vision of climate justice:

Climate justice: Can we agree to disagree?
Operationalising competing equity principles to mitigate global warming

PhD thesis submitted in October 2017

The international community has agreed to limit global warming to 2 °C and pursue 1.5 °C. Staying within this boundary implies undertaking strong mitigation commitments. At climate conferences, countries exposed different equity concepts to drive the sharing of the required mitigation. The sum of each country’s self-determined fair share of the global mitigation burden is insufficient to keep warming below 2 °C, let alone 1.5 °C. This PhD project assesses how to distribute the GHG emissions consistent with the temperature goals under a combination of effort sharing approaches. A normative method determines coherent national mitigation targets under a combination of equity approaches. This quantitative 'hybrid' approach adopts the distributive nature of a bottom-up approach with the stringency of a top-down approach.

The research project is a collaboration between the University of Melbourne and the Potsdam Institute for Climate Impact Research (PIK) in Germany.

Supervisors: A/Prof. Malte Meinshausen, A/Prof. Peter Christoff

German Supervisor: Louise Jeffery

Start Date: October 2013

Contact: yann.rdp@climate-energy-college.org

First author:
Equitable mitigation to achieve the Paris Agreement goals, (Nature Climate Change, 2017)
National contributions for decarbonizing the world economy in line with the G7 agreement, (Environmental Research Letters, 2016)
National post-2020 greenhouse gas targets and diversity-aware leadership, (Nature Climate Change, 2015)

How fair are countries' climate pledges?, Robiou du Pont, Y., Jeffery, M. L. (2016)

The Paris Agreement global goals: What does a fair share for G20 countries look like? (2017)

ORCID: orcid.org/0000-0002-1275-9597

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PDF icon Resume - Yann Robiou du Pont.pdf405.41 KB

Completion seminar - Yann Robiou du Pont, July 28th 2017

Abstract: With the Paris Agreement, countries agreed to limit global warming to well below 2 °C and pursue efforts to 1.5 °C. Equitable distribution across countries of emissions rights consistent with these goals is contentious and involves divergent views of distributive justice. With the absence of consensus on an effort-sharing approach, current negotiations under the UNFCCC follow an uncoordinated, or ‘bottom-up’, approach where each country tends to support its favoured approach. The sum of all parties’ announced contributions is not consistent with the Paris Agreement goals.

This thesis offers a normative method to quantify national emissions trajectories consistent with the temperature goals under each IPCC equity category or a combination of approaches in a ‘bottom-up’ regime. The resulting emissions allocation provides a new scale, is inclusive of all international positions, to assess the ambition of the Nationally Determined Contributions to the Paris Agreement.

Paris Equity Check Website

A new interactive website shows how equitable are countries' climate pledges under the Paris Agreement mitigation goals. This website is based on a Nature Climate Change study that compares Nationally Determined Contributions with equitable national emissions trajectories in line with the five categories of equity outlined by the IPCC.