Editorial
Holocene Histories of Atmospheric CO2 Concentration and West Greenland Air Temperature: What we can learn from even a cursory glance at the data?

Subject Index Summary
Growth Response to CO2 with Other Variables (Temperature: Agricultural Crops): As the air's CO2 content rises, most plants exhibit increased rates of photosynthesis and biomass production, which should enable the growing of the increased amount of food crops that will be needed to feed earth's still-expanding human population in the years and decades ahead. However, some people claim that the growth-promoting effects of atmospheric CO2 enrichment may be largely negated by the global warming that is predicted to occur in the near future by a number of climate models; and this outcome could seriously compromise mankind's ability to sustain earth's growing human population. But is this really the case?

Journal Reviews
Storms of the Northern Hemisphere: Is there any temperature-related pattern that provides a clue as to when they are more frequent and fierce?

Changes in Global Precipitation Over Land in a Warming World: Does the climate of the earth become more variable as it warms, leading to greater extremes of wetness and dryness, as climate alarmists say it should?

Tropical Upper Tropospheric Warming: Models vs. Measurements: How well do the former represent the latter? And do CMIP5 projections do any better than CMIP3 projections?

Divining Future Winter Wheat Yields in the United Kingdom: What might be expected in a warmer and CO2-enriched world?

Seagrasses and Marine Macroalgae in a CO2-Enriched World: Would they feel more or less "at home" than they do now?

Female Copepods Help Their Offspring Survive OA and Warming: Actually, the small crustaceans are simply "doin' what comes naturally."

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 to a 2 µm addition of potassium nitrate). To access the entire database, click here.

Plant Growth Database
Our latest results of plant growth responses to atmospheric CO2 enrichment obtained from experiments described in the peer-reviewed scientific literature are: Japanese White Birch (Hoshika et al., 2012) and Monarch Birch (Hoshika et al., 2012).

Medieval Warm Period Project
Was there a Medieval Warm Period? YES, according to data published by 1176 individual scientists from 672 research institutions in 46 different countries ... and counting! Our latest Medieval Warm Period Record comes from Laguna Escondida, Patagonia, Chile, Patagonia, Chile. To access the entire Medieval Warm Period Project's database, click here.

World Temperatures Database
Back by popular demand and upgraded to allow patrons more choices to plot and view the data, we reintroduce the World Temperatures section of our website. Here, users may plot temperatures for the entire globe or regions of the globe. A newly added feature allows patrons the ability to plot up to six independent datasets on the same graph. Try it today. World Temperatures Database.

Climate Change Reconsidered
The 2011 Interim Report of the Nongovernmental International Panel on Climate Change: We provide a link to this report as a courtesy and encourage all to download and read it. The 2011 Interim Report presents an overview of the research on climate change that has appeared since publication of Climate Change Reconsidered: The 2009 Report of the Nongovernmental International Panel on Climate Change. Research published before 2009 was included if it did not appear in the 2009 report or provides context for the new research. Nearly all of the research summarized here appeared in peer-reviewed science journals.