How does rising atmospheric CO2 affect marine organisms?

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Volume 16 Number 14:  3 April 2013

Coral Decline on Australia's Great Barrier Reef: What can we learn from it?

Subject Index Summary
Medieval Warm Period (Antarctica): Was there a Medieval Warm Period somewhere in the world in addition to the area surrounding the North Atlantic Ocean, where its occurrence is uncontested? This question is of utmost importance to the ongoing global warming debate, for if the Medieval Warm Period is found to have been a global climatic phenomenon, and if the locations where it occurred were as warm in medieval times as they are currently, there is no need to consider the temperature increase of the past century as anything other than the natural progression of the persistent millennial-scale oscillation of climate that regularly brings the Earth several-hundred-year periods of modestly higher and lower temperatures that are totally independent of variations in atmospheric CO2 concentration. Consequently, we here review the findings of several studies that have found evidence for the Medieval Warm Period in a region that is as far away from lands bordering on the North Atlantic Ocean as one could possibly get, i.e., Antarctica.

Journal Reviews
Intense Tropical Cyclones of the Northern Indian Ocean: How have they varied over the past few decades?

Biases in the Output of Global and Regional Circulation Models: How are they currently dealt with? ... how should they really be handled?

Long-Term Responses of Coccolithophores to Ocean Acidification: Three researchers look 50 million years back in time to determine what the responses have been.

Thermal History Impacts Thermal Tolerance of Freshwater Mussels: Exposure to a little extra heat enables mussels to tolerate even more heat.

Terrestrial Ecosystems of Northern Canada in a State of Flux: How have they responded to the warming of the past few decades?

Evolutionary Rescue of a Species in a Deteriorating Environment: How has the phenomenon been shown to work for Chlamydomonas reinhardtii?

Medieval Warm Period Project
The latest Medieval Warm Period Record comes from Taibai Lake, China.

Ocean Acidification Database
The latest addition of peer-reviewed data archived to our database of marine organism responses to atmospheric CO2 enrichment is Foraminifera [Marginopora rossi] (water treatment was adjusted with a 2 µm addition of potassium dihydrogen phosphate (KH2PO4). To access the entire database, click here.