How does rising atmospheric CO2 affect marine organisms?

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Volume 7 Number 42:  20 October 2004

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

Carbon Sequestration by Grasslands in a CO2-Enriched World: Trees rank high on the list of schemes for sequestering carbon to mitigate global warming; but don't underestimate the potential of more mundane grasslands, which are slowly but surely being transformed into considerably more attractive carbon repositories by the ongoing rise in the air's CO2 content.

Subject Index Summaries
Climate Oscillations (Centennial Variability): Earth's climate, although typically described in terms of time-averaged statistics, is always in flux, varying simultaneously on a number of different timescales.  In this Summary, we discus the results of several peer-reviewed scientific journal articles that treat this subject at the level of century-scale variability.

Long-Term Studies (Woody Plants: Lifetime Exposure to Elevated CO2): How have shrubs and trees growing near natural CO2 springs and vents responded to the elevated atmospheric CO2 concentrations to which they have been exposed throughout their entire lives?

Journal Reviews
Atmospheric Temperature and Greenhouse Gas Concentration in the Vostok Ice Core Record: Can the similar temporal behaviors of the two parameters be finely enough resolved to reveal which plays the leading role in the oscillations they exhibit over the past four glacial cycles?

North Atlantic Storminess: Will it worsen if the globe continues to warm?

Old-Growth Forests: Can They Still Sequester Significant Amounts of Carbon?: Most organisms gradually lose their mid-life vitality as they grow ever older.  Trees of half a millennium in age, however, are exhibiting a striking stubbornness in not succumbing to this long-held expectation.

Ocean Productivity: Its Response to Global Warming: Climate alarmists often pontificate about the dire consequences they foresee for life in the world's oceans if the globe warms as predicted by state-of-the-art climate models.  So what is the real status of research into this subject?

Elevated Levels of Atmospheric CO2 vs. UV-B Radiation Stress in the Marine Environment: Can the biological benefits of the former do anything to alleviate the damage typically caused by the latter in marine phytoplankton?