How does rising atmospheric CO2 affect marine organisms?

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Volume 5 Number 22:  29 May 2002

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

Current Editorial
Respiratory Diseases and CO2: A Third Perspective: People calling for reductions in anthropogenic CO2 emissions because experiments have demonstrated that elevated levels of atmospheric CO2 enhance the production of pollen in certain plants known to be responsible for allergies in many people fail to see the bigger picture that refutes their myopic reasoning ... again!

Subject Index Summaries
Agriculture (Species -- Sunflower): A review of some of the recently published literature suggests that increases in the air's CO2 content will enhance photosynthesis and biomass production in sunflowers.

Holocene (Regional -- Europe): Is the current climatic status of the earth in anyway unusual?  Is it really hotter than it's been for a thousand years, as climate alarmists like to tell us it is?  What about the past two thousand years?  Or the past ten thousand years?  We here review what some recent studies in Europe reveal about these questions ... and their answers.

Carbon Sequestration Commentary
CO2 and Soil Fungi: A Powerful Combination that Helps Plants Sequester More Carbon: There's more to terrestrial biological carbon sequestration than meets the eye ... literally.  Underground, filamentous hyphae of beneficial fungi that link plant and soil work to ensure that carbon in decaying plant biomass is trapped in secure soil aggregates.  And as the air's CO2 content rises, these fungi become ever more proficient at performing their important job.

Current Journal Reviews
An Introduced Warming Bias in the USHCN Temperature Database: Is it possible that various adjustments designed to improve the "correctness" of the USHCN temperature database are in actuality degrading it?  Is there a way to confidently answer this question?  Does the answer impact our view of the world?

Measuring Changes in Sea Level: A Status Report: Much remains to be learned about this complex subject.  What is known, however, seems to suggest that the observed rise in mean global sea level over the past century and a half has not been driven by the concomitant rise in the air's CO2 content.

A 400-Year Climatic History of the Western Himalayan Region of India: The more proxy temperature data one can obtain, the more confident one can be in the story they tell.  As progress is made in this field, our confidence in the "hockey stick" temperature history of Mann et al. continues to decline - even further (if that is possible).

Elevated CO2 Stimulates Micropropagation of Potatoes: Atmospheric CO2 enrichment led to the production of potato propagules of enhanced size and biomass relative to control propagules grown in ambient air.

Elevated Atmospheric CO2 Enhanced the Growth of Ancient Polar Forests: Under conditions of extended irradiance typical of polar summers, elevated CO2 stimulated photosynthesis, while simultaneously reducing respiration, in several deciduous and coniferous species characteristic of ancient polar forests, suggesting that historically-elevated paleo-CO2 concentrations stimulated forest growth and productivity in polar regions.