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Volume 7 Number 20:  19 May 2004

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

Editorial
Elevated CO2 Reduces Fluctuating Asymmetry of Oak Leaves: So how good or bad is that?

Subject Index Summaries
Roman Warm Period (South America): Did the Roman Warm Period extend into the Southern Hemisphere?  As in the case of the Medieval Warm Period that followed it, climate alarmists unanimously say no.  Real-world data, however, say yes.

Nutrients x CO2 Effects on Plants (Nitrogen - Trees: Spruce): How does the degree of soil nitrogen availability impact the aerial fertilization effect of atmospheric CO2 enrichment on the growth of spruce trees?

Journal Reviews
Synchronous Millennial-Scale Climatic Oscillations of the tropical Pacific and north Atlantic Oceans: The case for a worldwide millennial-scale oscillation of climate grows ever stronger, demonstrating that the global warming of the 20th century was not a consequence of the concomitant rise in the air's CO2 content.

Interior Alaska Temperatures: Are They the Canary-in-the-Coal-Mine of CO2-Induced Global Warming?: Since every other high-latitude place we have searched for the feathered harbinger of anthropogenic-induced climate change has proven clueless, perhaps this one will at last deliver the goods.

The Longevity of Amazonian Rainforest Trees: What are their upper age limits?  And what are the implications of that knowledge for tempering predicted CO2-induced global warming via biological carbon sequestration?

Effect of Atmospheric CO2 Enrichment on Isoprene Emissions from a Globally Ubiquitous Grass: Are they increased or decreased?  And why do we care?

Free Radical Scavenging Capacities of Winter Wheat: How may they be altered by global warming?  And why do we care?