Category Archives: Climate Change

Land Use: How Important for Climate?

Posted on 06/11/2008 by peggy

According to the most recent report by the Intergovernmental Panel on Climate Change, land use change has a relatively minor impact on the recent rise in global average temperature. Yet, as stressed in an earlier set of blogs on Iowa … Continue reading →

Posted in Climate, Climate Change, Land Cover | Leave a comment

Will there be more tropical cyclones in the future?

Posted on 06/02/2008 by peggy

At a recent meeting, someone commented to me that the “global-warming folks” must be wrong, since we haven’t had a strong hurricane season since 2005, and weren’t they saying that a warmer climate means more hurricanes? Since we had work … Continue reading →

Posted in Atmosphere, Climate Change | Leave a comment

2008 IPY Pole-to-Pole Videoconference

Posted on 04/10/2008 by peggy

I’m going to interrupt blogging about surprising liquid puddles and soil temperature to talk about the Second Pole-to-Pole Videoconference, which took place yesterday (8 April 2008). Several scientists participated, as did five schools: in Ushuaia, Argentina, the Escuela Provincial No. … Continue reading →

Posted in Climate, Climate Change, Earth System Science, Field Campaigns, GLOBE Protocols, Seasons and Biomes | Leave a comment

More About Carbon Dioxide

Posted on 11/14/2007 by peggy

Recently, a group of scientists estimated that the increase in carbon dioxide release rate between 2000 and 2006 was greater than any of the scenarios envisioned by the Intergovernmental Panel on Climate Change (IPCC) in the late 1990s. This brings … Continue reading →

Posted in Atmosphere, Carbon, Climate Change, Earth System Science | Leave a comment

Climate Change 4. Carbon Dioxide Changes

Posted on 08/16/2007 by peggy

(Note: We discuss carbon dioxide because it contributes to slightly over half of current greenhouse warming, but we must remember that methane, CFCs, ozone, and nitrous oxide together account with slightly less than half). When I was a graduate student … Continue reading →

Posted in Atmosphere, Carbon, Climate Change, Earth System Science | 2 Comments