Anthropogenic Space Weather

Anthropogenic effects on the space environment started in the late 19th century and reached their peak in the 1960s when high-altitude nuclear explosions were carried out by the USA and the Soviet Union. These explosions created artificial radiation belts near Earth that resulted in major damages to several satellites. Another, unexpected impact of the high-altitude nuclear tests was the electromagnetic pulse (EMP) that can have devastating effects over a large geographic area (as large as the continental United States). Other anthropogenic impacts on the space environment include chemical release ex- periments, high-frequency wave heating of the ionosphere and the interaction of VLF waves with the radiation belts. This paper reviews the fundamental physical process behind these phenomena and discusses the observations of their impacts.Comment: 71 pages, 35 figure

LOCAL REGIMES: Does Globalization Challenge the "Growth Machine"?

This article explores the possible impacts that globalization might have upon the nature of local governments and the economic development policies that they adopt. We begin by outlining the theory of how "corporate regimes" dominate most urban centers, why they implement skewed economic development policies, and why globalization appears to be exacerbating these problems. Research on state-and-local economic development outside urban centers indicates that several types of business development exist and that they differ significantly in their implications for improving conditions in a community. This suggests that other types of corporate regimes are possible. The logic of globalization points toward the need to establish more progressive corporate regimes willing to implement some of the reforms advocated by critics of the "growth machine." Copyright 2001 by The Policy Studies Organization.