• Background Solar Irradiance and the Climate of the Earth in the End of the 20th Century
• The Resolution of the Great 20th Century Debate in the Foundations of Mathematics
• A Late 20th Century European Climate Shift: Fingerprint of Regional Brightening?
• Explanations for 20th Century Tuberculosis Decline: How the Public Gets It Wrong
• A Brief History of Maritime Econometrics, 1934-2012