Dataset for "Assessing climate ambition through policy outputs: a comparative measure of 35 major emitters"

Climate ambition flexibly engages with broad policy frameworks of countries, typically referring to the holistic policy efforts in the climate field. However, levels of ambition vary greatly across countries. Understanding of these cross-national variations is limited, owing to conceptual complexity, limited data, and methodological challenges. I propose a comparative measure of ‘climate policy ambition’ based on the combination of depth and breadth of policy outputs. Drawing on this comparative framework, I introduce a new dataset to explore the climate policy ambitions of 35 major emitters (each contributing at least 0.5% of global emissions) from 1990 to 2020. The added value of this measurement model lies in its ease of construction, data transparency, and adaptability for extension across various timeframes and localities.

Keywords:
climate change, policy outputs, ambition, cross-country data
Subjects:
Climate and climate change
Political science and international studies

Cite this dataset as:
Ye, Y., 2025. Dataset for "Assessing climate ambition through policy outputs: a comparative measure of 35 major emitters". Bath: University of Bath Research Data Archive. Available from: https://doi.org/10.15125/BATH-01592.

Export

Access on request: Access to bona fide researchers only.

Creators

Yitong Ye
University of Bath; University of Glasgow

Contributors

University of Bath
Rights Holder

Coverage

Collection date(s):

From 1 January 2022 to 31 August 2022

Temporal coverage:

From 1 January 1990 to 31 December 2020

Geographical coverage:

35 major emitting countries (each contributing at least 0.5% of global emissions)

Documentation

Methodology link:

Ye, Y., 2025. Assessing climate ambition through policy outputs: a comparative measure of 35 major emitters. npj Climate Action, 4(1). Available from: https://doi.org/10.1038/s44168-025-00278-7.

Documentation Files

README.rtf
text/rtf (3kB)
Creative Commons: Attribution 4.0

The dataset is accompanied by a README file that outlines the data structure, access conditions, and other related documentation. Detailed information on coding methodology and specific procedures is available in the related open-access publication.

Funders

Publication details

Publication date: 10 August 2025
by: University of Bath

Version: 1

DOI: https://doi.org/10.15125/BATH-01592

URL for this record: https://researchdata.bath.ac.uk/1592

Related papers and books

Ye, Y., 2025. Assessing climate ambition through policy outputs: a comparative measure of 35 major emitters. npj Climate Action, 4(1). Available from: https://doi.org/10.1038/s44168-025-00278-7.

Contact information

Please contact the Research Data Service in the first instance for all matters concerning this item.

Contact person: Yitong Ye

Departments:

Faculty of Humanities & Social Sciences
Social & Policy Sciences