Editorial
Key Feature of Negative Climate Feedback Phenomenon Confirmed: A new paper based on comprehensive real-world data establishes the validity of the central concept of a powerful negative climate feedback phenomenon.

Medieval Warm Period Record of the Week
This issue's Medieval Warm Period Record of the Week comes from Amargosa Canyon, Death Valley, California, USA.

Subject Index Summary
Sea Level (Global Measurements): What do global sets of sea level data suggest about the nature of 20th-century global warming?

Journal Reviews
Forty-Eight Years of Tropical Cyclone Activity Over China: How has it changed with the passage of time?

Climate and Forest Fires in Ontario, Canada: How are they related?

The Medieval Warm Period and Little Ice Age in the Indo-Pacific Warm Pool: How far can one travel from the North Atlantic Ocean and still find evidence of the Medieval Warm Period and Little Ice Age?

Climatic Change and Atopic Eczema: What moving from a subarctic/temperate climate to a sunny subtropical climate can do for children who suffer from the disease.

Climatic Effects on Oceanic DMS Producers: How does global warming affect one of the important negative feedback phenomena that modulate earth's climate?