How does rising atmospheric CO2 affect marine organisms?

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Volume 6 Number 33:  13 August 2003

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

Major Report
The Specter of Species Extinction: Will Global Warming Decimate Earth's Biosphere?: Read or download the first of a series of major reports we plan to produce on topics related to the ongoing rise in the air's CO2 content.  Our first report -- The Specter of Species Extinction -- asks in its subtitle Will Global Warming Decimate Earth's Biosphere?  Climate alarmists say yes.  We suggest just the opposite..

Ten Years of Photosynthetic Response to Atmospheric CO2 Enrichment in Perennial Ryegrass: As time progressed in this record-setting long-term study, did the initial CO2-induced stimulation of photosynthesis gradually waste away to practically nothing, as many people unwilling to see any good in the ongoing rise in the air's CO2 content often claim will be the case?

Subject Index Summaries
Medieval Warm Period (South America): A topic of considerable current interest in climatic circles is the question of the global extent of the Medieval Warm Period and its degree of expression in various parts of the world.  Hence, we here briefly summarize what we have reported over the past several years with respect to what scientists have learned about the Medieval Warm Period in South America.

Carbon Sequestration (Temperature Effects): For many years, theoretical models of ecosystem dynamics suggested global warming would reduce both the magnitude and number of terrestrial carbon sinks by increasing ecosystem respiration more than it increased ecosystem photosynthesis.  For many years they were wrong.

Journal Reviews
Indian Monsoon Rainfall: Effects of Global Warming: Climate models suggest that rising temperatures should lead to "increased variability and strength of the Asian monsoon."  Over the last hundred-plus years of what climate alarmists call unprecedented global warming, however, these predicted features are nowhere to be found in the real-world record.

The Little Ice Age in Southwest Spain: Although less studied in Mediterranean Europe than in Northern Europe, the Little Ice Age is manifest in this southern region as well.  Here, however, its most notable impact appears to be related to precipitation rather than temperature.

Dying from Heat and Cold in Brazil: Which is the biggest killer?

Effects of Atmospheric CO2 Enrichment on the Growth of Two Species of Marine Macroalgae: Is the dissolved inorganic carbon concentration in sea-water high enough to bring about maximum photosynthetic rates for macroalgae?  This is the question that is both posed and answered by the authors of this intriguing study.

Coronary Disease in Australia: How is it impacted by temperature, both in the short-term (reflected in daily data) and long-term (reflected in seasonal data)?  Results from Australia show pretty much the same basic trends as those observed in most other parts of the world.