Drayton's Gazette discusses social and political issues happening around the globe through the eyes of the African American, minority and disaffected communities.

From the Global Imaging Corporation

Satellite Images for Monitoring Global Climate Change

Climate scientists recently issued a warning on global warming, prompting a UN demand for politicians to tackle the global warming crisis. Global average surface temperatures could rise by between 1.1 °C (1.98 °F) and 6.4 °C (11.52 °F) compared to 1980-99 levels. Sea levels will rise by at least 18 centimeters (7.2 inches). Heat waves, rainstorms, tropical cyclones and surges in sea level are among the events expected to become more frequent, more widespread or more intense this century.

The extent of these changes has prompted concern about the possible effects on the global physical, chemical and biological systems. Large-scale changes in land use at rates unprecedented in human history are provoking considerable concern. Land use change is frequently accompanied by alterations or changes in land cover, which may possibly contribute to subsequent environmental change. Evaluation of static attributes (types, amount and arrangement) and the dynamic attributes (types and rates of change) on satellite images may allow the types of change to be regionalized and the proximate sources of change to be identified or inferred. This information, combined with results of case studies or surveys, can provide helpful input to informed evaluations of interactions among the various driving forces.


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