Resource Management Implications of Climate Change Webinar Series
Resource Management Implication of Climate Change Webinar Descriptions
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Presented by Christopher Horsch, USFWS. February 2010.
This presentation draws from the work done by others, notably Dr. Richard Wolfson, Middlebury College, the late Dr. Stephen Schneider, Stanford University, and Dr. Stephen Miller, USFWS. Throughout its history, Earth’s climate has varied, reflecting the complex interactions and dependencies of the solar, oceanic, terrestrial, atmospheric, and living components that make up planet Earth’s systems. For at least the last million years, our world has experienced cycles of warming and cooling that take approximately 100,000 years to complete.
Over the course of each cycle, global average temperatures have fallen and then risen again by about 9°F (5°C), each time taking Earth into an ice age and then warming it again. This cycle is believed associated with regular changes in Earth’s orbit that alter the intensity of solar energy the planet receives. Earth’s climate has also been influenced on very long timescales by changes in ocean circulation that result from plate tectonic movements. Earth’s climate has changed abruptly at times, sometimes as a result of slower natural processes such as shifts in ocean circulation, sometimes due to sudden events such as massive volcanic eruptions. Species and ecosystems have either adapted to these past climate variations or perished.
Presented by Dr. Stephen Miller, USFWS. February 2010.
Presented by Ross Alison, Planning Cordinator for the National Wildlilfe Refuge System and Dean Grantholm, Planner for National Wildlife Refuge System Midwest Region, Fort Snelling, MN. February 2010.
Presented by Dr. Mark McCaffrey, the Cooperative Institute for Research in Environmental Sciences. February 2010.