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Volume 5 Number 40:  2 October 2002

Temperature Record of the Week
This issue's Temperature Record of the week is from Shelbyville, Kentucky. Visit our U.S. Climate Data section to plot and view these data for yourself.

Current Editorial
Uncertainty About CO2 as a Climate Driver: Is It Increasing or Decreasing?: In a rambling commentary on various reasons why people do or do not consider the CO2 produced by the burning of fossil fuels to be a significant force for climate change, Lee Kump concludes "we ultimately must use and trust [the] climate models" that put CO2 in the climate-driver's seat.  Much of what he reports in his discussion, however, suggests we would be wise to do otherwise.

Subject Index Summaries
Regional Precipitation Trends (North America): Is real-world precipitation in North America doing what climate alarmists say it is, i.e., becoming more variable and intense, leading to more frequent and intense floods and droughts?

Water Use Efficiency (Trees): A host of scientific studies clearly demonstrates that earth's trees and shrubs will continue to exhibit increases in water-use efficiency as the air's CO2 content continues to rise, thereby enabling them to better cope with drought stress and grow in regions that historically have been too dry for them.

Carbon Sequestration Commentary
Atmospheric Nitrogen Deposition: Its Long-Term Impact On Carbon Sequestration in Soils: The world is a complex and interconnected place, where very little happens independent of everything else.  So it is with anthropogenic CO2 emissions; they are accompanied by emissions of nitrogenous compounds that influence a host of biological phenomena in ways that ultimately enhance the removal CO2 from the atmosphere and temper its ability to induce global warming.

Current Journal Reviews
More Evidence for Millennial-Scale Climate Oscillations: Pollen records from all of North America bear witness to the reality of naturally-forced millennial-scale climate change that periodically brings us Modern Warm Period-type weather.

Visits to the Doctor by the Elderly: The Role of Temperature: Are you a senior citizen, age 65 or older?  If so, bundle up this winter and pray for a little warmth.  Your health may depend on it!

A Twenty-Year Record of Changes in Antarctic Sea Ice: Over what climate alarmists claim are the fastest-warming two decades of the fastest-warming century of the past millennium, and in one of earth's polar regions - where CO2-induced global warming is supposed to be most dramatic, due to the ice-albedo feedback phenomenon - one would expect to see sea ice in rapid retreat ...... if you believe the climate models.  On the other hand, if you don't believe the climate models, you will not be surprised to learn that what is actually happening is just the opposite of what the models predict.

Growth Response of Arabidopsis thaliana to Elevated CO2: Elevated CO2 significantly enhanced the activity of a key enzyme involved in cell wall biosynthesis over the first three weeks of a seven-week study, during which period there was a comparable increase in plant relative growth rate.

Air and Soil Fertility Affect Regrowth of Forage Plants: A study of a C3 grass, a C4 grass and a C3 legume indicates that atmospheric CO2 and soil nitrogen concentrations affect the regrowth of these different forage plants in different, but readily understandable, ways.

Putting Carbon in Putting Greens: When Bob Balling gazes out upon the fairways and putting greens of the many golf courses he's visited over the years, you can bet he's doing more than anticipating the challenge they present to his game.  He's estimating the rate at which they're sucking carbon out of the air and mitigating global warming!