How does rising atmospheric CO2 affect marine organisms?

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Volume 5 Number 47:  20 November 2002

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

Current Editorial
Guest Editorial: Elevated CO2 Will Affect Human Nutrition: In the interest of fairness, we relinquish our editorial space this week to Dr. Irakli Loladze of Princeton University, who responds to our Editorial of 30 October 2002, where we criticized several aspects of a paper of his that was recently published in Trends in Ecology & Evolution.

Subject Index Summaries
Effects of Ozone on Plants (Agricultural Species): Elevated tropospheric ozone concentrations cause devastating crop production losses on a global scale.  Can the rising CO2 content of the air do anything to ameliorate this sad situation?

Streamflow (Historic Trends): Will the planet's hydrologic cycle begin working overtime, increasing the flow rates of rivers and streams the world over, as the air's CO2 content continues to climb?  Or will it do just the opposite and bring us devastating droughts?  Or will it do about as it has in the past?

Current Journal Reviews
Thirteen Thousand Years of Storminess in the Northeastern United States: Has storminess in this part of the world varied significantly in the past?  And if it has, does the historical record provide any support for climate-alarmist claims of current or imminent CO2-induced increases in either storm frequency or intensity?

Temperature Extremes in a Warming World: Will they be closer to or farther from the mean?

Effects of Elevated CO2 on Olive Trees: Olive production is economically important in many areas having a Mediterranean-type climate.  Will the ongoing rise in the air's CO2 content allow such trees to increase their productivity in such regions, where periodic drought is almost a seasonal surety?

Effects of Elevated CO2 on the Desert Succulent Agave deserti: Few studies have investigated the impacts of atmospheric CO2 enrichment on desert succulents.  Hence, we here report the results of an experiment designed to evaluate the effects of elevated CO2 on the growth and water use of an Agave species common to the Sonoran Desert of the USA and Mexico.

Effects of Elevated CO2 on Carbon Sequestration in Heather: The ability of the low-growing woody species to sequester carbon in its tissues and associated soils is assessed under conditions of atmospheric CO2 enrichment.