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Volume 12 Number 31:  5 August 2009

Guest Editorial by Tom Segalstad, Associate Professor of Resource and Environmental Geology, The University of Oslo, Norway
Correct Timing is Everything - Also for CO2 in the Air: Is the residence time of CO2 in the atmosphere really as long as the IPCC claims it is?

Medieval Warm Period Record of the Week
This issue's Medieval Warm Period Record of the Week comes from the Southern Swedish Scandes, Sweden.

Subject Index Summary
Nitrogen (Progressive Limitation Hypothesis - Miscellaneous): Although the PNL hypothesis sounds logical enough - and many scientists initially embraced it as fact - it has subsequently been proven to be fiction.

Journal Reviews
Cosmic Rays, Clouds and Climate: The Latest from Svensmark: Have he and his colleagues nailed down the necessary linkages?

Global Temperatures: Driven by ENSO?: To what extent has the global temperature record of the last half-century been driven by the El Niņo-Southern Oscillation phenomenon? ... and what does the answer suggest about the validity of IPCC temperature projections?

Tropical Climate Variability: Does it behave in the way climate alarmists claim it does?

The Impact of Atmospheric CO2 Enrichment on a Major Oceanic N2-Fixing Cyanobacterium: It's a big deal; and it has beneficial consequences for earth's biology and climate.

The Fate of Coastal Wetlands in a Warming and CO2-Accreting Atmosphere: Are they destined to be submerged by rising sea levels, as glaciers and polar ice sheets melt at ever-increasing rates?