Editorial
The Greening of Earth's Arid and Semi-Arid Lands: Rising atmospheric CO2 concentrations initiate the process, while a host of other phenomena combine to enhance it.

Journal Reviews
Fluctuations in Air Temperature and Certain Cloud Parameters: How have they changed over the past century and recent decades?

Climate-Driven Adaptations of Balsam Poplar Trees: How did the trees change as they expanded their ranges in response to the warming that followed the last glaciation?

Plant Species' Range Shifts in Mountainous Areas: They're not all uphill.

Ocean pH Tolerance in Two Important Antarctic Invertebrates: Is it really as low and as tenuous as climate alarmists make it out to be?

Pasture and Rangeland Responses to Rising CO2 Concentrations and Projected Changes in Climate: What is the outlook for the next fifty years in the United States?

Roots of CO2-Enriched Trees Seek Out Needed Nitrogen: ... and they find it!

Medieval Warm Period Project
This issue's Medieval Warm Period Record comes from the French Alps.

Ocean Acidification Database
The latest addition of peer-reviewed data archived to our database of marine organism responses to atmospheric CO2 enrichment is Bay Scallop [Argopecten irradians]. To access the entire database, click here.