They go further and point to, just as one example of their argument, the way in which population rise could lead to a phase change, a chaotic and of unknown outcome, rapid and irreversible change in our environment.
The lack of a hospitable environment in some cities has slowed what some thought might be Wal-Mart's next big growth phase, following its rapid rise in rural America and the suburbs.
The rise of solar power in Germany is directly related to the country's phase-out of nuclear power plants -- however in Japan, the issue of nuclear power is back in the news.
Though Georgetown is still in a pilot phase, Russell says a statistics professor in the School of Foreign Service has tracked a steady rise in average grades among students since he began employing lecture capture.