[Rockhounds] Coal Formation and Near-global Glaciation

[Paul]

Feulner, G., 2017. Formation of most of our coal brought Earth
close to global glaciation. Proceedings of the National Academy
of Sciences, 114(43), pp. 11333-11337.

Abstract:
http://www.pnas.org/content/114/43/11333.short
https://www.ncbi.nlm.nih.gov/pubmed/29073052

Paper:
https://pdfs.semanticscholar.org/0b23/8273be5a2b4f06d7fb1e5932b45f731944be.pdf

Yours,

Paul H.