About the Authors

Roger D. Santer

rds5@aber.ac.uk

Affiliation Institute of Biological, Environmental, and Rural Sciences, Aberystwyth University, Aberystwyth, Ceredigion, United Kingdom

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Analyzed the data: RDS. Contributed reagents/materials/analysis tools: RDS. Wrote the paper: RDS.