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6/06/2006

CO2 Science Vol 9 No 23 Now Posted

Volume 9, Number 23

http://www.co2science.org/scripts/CO2ScienceB2C/Index.jsp 

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Editorial
A 1500-Year Climate History of Northern Eurasia A synthesis of the results of a large number of paleoclimate studies conducted within the region reveals the existence of both the Medieval Warm Period and Little Ice Age, as well the modern era of warming.

Medieval Warm Period Record of the Week
This issue's Level 3 Medieval Warm Period Record of the Week is from the Sierra Nevada and White Mountains  of California. To access the entire Medieval Warm Period Project's database, click here.

Subject Index Summary
Ozone (Effects on Plants -- Tree Species: Beech) What are the effects? How bad are they? And how are they impacted by increases in the air's CO2 content?

Plant Growth Data
This week we add new results (blue background) of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature for: Black Poplar, Microalgae, Sugar Maple, and White Poplar.

Journal Reviews
Hurricane Activity of the Past Two Decades How has it responded to the concomitant warming of the global ocean?

The Medieval Warm Period in the Tropical Andes of South America: A study of the Little Ice Age in the Venezuelan Andes reveals much about the antecedent Medieval Warm Period.

More on the Greening of the Sahel: As the phenomenon continues, the evidence for it grows ever stronger and more abundant.

African Microbes: Riding the Wind to America: Do many survive the journey? What are the consequences? How might things change in the future?

The Deleterious Effects of Increases in Atmospheric CO2 on the Growth and Development of Blue Mussel: How long will it be before they are completely exterminated?

Temperature Record of the Week
This issue's Temperature Record of the Week  is from Fond du Lac, WI. During the period of most significant greenhouse gas buildup over the past century, i.e., 1930 and onward, Fond du Lac's mean annual temperature has cooled by 0.88 degrees Fahrenheit. Not much global warming here!

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