Editorial
The Properties of Clouds at All Altitudes: How well are they known? ... and why do we care?

Medieval Warm Period Record of the Week
This issue's Medieval Warm Period Record of the Week comes from Mount Kenya, Eastern Africa.

Subject Index Summary
Fire (Relationship to Global Warming): Have global wildfires been increasing in response to global warming, as climate alarmists vociferously claim they have?

Journal Reviews
Droughts, Megadroughts and No-Analogue Megadroughts: From bad to worse to almost unbelievable: How do North American droughts of the Current Warm Period, the Little Ice Age and the Medieval Warm Period compare?

The "Terminal Classic Collapse" of Mayan Civilization: How might it be related to the development of the worldwide Medieval Warm Period?

The Little Ice Age in Southern Tanzania (Africa): What was its primary defining characteristic? And what seems to have been responsible for it?

Symbiodinium D: Coral's All-Purpose Clade for Coping with Stress: It would appear that earth's corals may harbor within them a less-than-fully-appreciated resource for surviving periodic episodes of a wide variety of environmental stresses.

Norway Spruce Forests of Northern Austria: How have their growth rates changed over the last four decades?