http://dx.doi.org/10.59704/d110f87ab3efa633 https://verfassungsblog.de/quantifying-fair-share-carbon-budgets/ Quantifying Fair Share Carbon Budgets - The Margin of Appreciation in the ECtHR’s Klimaseniorinnen Judgment Revisited Jackson, Andrew Kelleher, Orla eng 2025-07-18 electronic resource text/html ddc:342 Carbon Budgets KlimaSeniorinnen Mitigation Verfassungsblog Verfassungsblog--2366-7044 CC BY-SA 4.0 An obligation to quantify each country’s fair share of the remaining global carbon budget associated with limiting global heating to 1.5°C flows from the judgment in KlimaSeniorinnen. While there will naturally be debate about what represents a country’s fair share – the EU’s independent advisory body ESAB recently considered a range of fair share principles and concluded that the EU’s fair share has already been used up under many of these – the obligation to quantify fair share budgets should, in our view, be the subject of a reduced margin of appreciation consistent with KlimaSeniorinnen.